diff --git a/ProjectDirector/ProjectDirector.cs b/ProjectDirector/ProjectDirector.cs
index 5c400ef..1b26be5 100644
--- a/ProjectDirector/ProjectDirector.cs
+++ b/ProjectDirector/ProjectDirector.cs
@@ -894,7 +894,12 @@ private void ShowCollapsiblePanel(string name, Action contentDelegate)
 		ImGuiProbes.MarkItem("panel", name);
 		if (expanded)
 		{
+			// CollapsingHeader opens no ID scope of its own, so without this two panels drawing a widget
+			// with the same label (each owner's ".github" row) would give both the same ID, and ImGui would
+			// hand a click on the second to the first.
+			ImGui.PushID(name);
 			contentDelegate?.Invoke();
+			ImGui.PopID();
 			open = true;
 		}
 		else
@@ -1020,7 +1025,7 @@ private void ShowRepos(GitHubOwnerName owner)
 					ImGui.SameLine();
 					bool isSelected = Options.BaseRepo == repoName;
 					bool clicked = ImGui.Selectable(gitHubRepo.RepoName, ref isSelected);
-					ImGuiProbes.MarkItem("repo", gitHubRepo.RepoName);
+					ImGuiProbes.MarkItem("repo", repoName);
 					if (clicked)
 					{
 						SwitchPage(repoName);
diff --git a/tests/ProjectDirector.UITests/Gallery/GalleryApp.cs b/tests/ProjectDirector.UITests/Gallery/GalleryApp.cs
index b85c9d1..3540794 100644
--- a/tests/ProjectDirector.UITests/Gallery/GalleryApp.cs
+++ b/tests/ProjectDirector.UITests/Gallery/GalleryApp.cs
@@ -39,7 +39,13 @@ private GalleryApp(ImGuiAppHarness harness, ProjectDirectorOptions options, Cred
 	/// <summary>Starts the application at the given display size.</summary>
 	/// <param name="display">The size of the window the application draws into.</param>
 	/// <returns>The running application.</returns>
-	internal static GalleryApp Start((int Width, int Height) display)
+	internal static GalleryApp Start((int Width, int Height) display) => Start(display, GalleryRepositories.CreateOptions);
+
+	/// <summary>Starts the application at the given display size over settings the caller builds.</summary>
+	/// <param name="display">The size of the window the application draws into.</param>
+	/// <param name="createOptions">Builds the settings the application runs on, after the settings file and secret store are redirected.</param>
+	/// <returns>The running application.</returns>
+	internal static GalleryApp Start((int Width, int Height) display, Func<ProjectDirectorOptions> createOptions)
 	{
 		AppData.ConfigureForTesting(() => new MockFileSystem());
 		CredentialCache credentials = new(new InMemoryCredentialStore());
@@ -47,7 +53,7 @@ internal static GalleryApp Start((int Width, int Height) display)
 
 		try
 		{
-			ProjectDirectorOptions options = GalleryRepositories.CreateOptions();
+			ProjectDirectorOptions options = createOptions();
 			ProjectDirector director = new(options);
 			ImGuiAppHarness harness = ImGuiAppHarness.Start(director.BuildConfig(), new HarnessOptions
 			{
@@ -68,7 +74,7 @@ internal static GalleryApp Start((int Width, int Height) display)
 	/// <param name="repo">The repository's own name.</param>
 	internal void SelectRepository(string repo)
 	{
-		Harness.Click($"repo/{repo}");
+		Harness.Click($"repo/{GalleryRepositories.FullName(repo)}");
 		GitRepository selected = Options.Repos[GalleryRepositories.FullName(repo)];
 
 		// The comparison runs git on a background task, which publishes whenever it finishes rather
diff --git a/tests/ProjectDirector.UITests/RepoPanelTests.cs b/tests/ProjectDirector.UITests/RepoPanelTests.cs
new file mode 100644
index 0000000..0230a2a
--- /dev/null
+++ b/tests/ProjectDirector.UITests/RepoPanelTests.cs
@@ -0,0 +1,64 @@
+// Copyright (c) 2023-2026 ktsu-dev contributors
+
+namespace ktsu.ProjectDirector.UITests;
+
+using ktsu.ProjectDirector.UITests.Gallery;
+using ktsu.Semantics.Paths;
+
+/// <summary>
+/// Drives the left panel's repository list, where every owner's repositories are drawn as rows of
+/// the same kind of widget.
+/// </summary>
+[TestClass]
+public sealed class RepoPanelTests
+{
+	private const string SharedName = ".github";
+
+	private static readonly string[] Owners = ["ktsu-dev", "matt-edmondson"];
+
+	[TestMethod]
+	public void ClickingASharedRepoName_SelectsThatOwnersRepository()
+	{
+		using GalleryApp app = GalleryApp.Start(AppGallery.Display, CreateOptions);
+		app.Harness.Step(2);
+
+		// Click the later owner first: it is the row an ID clash with the earlier owner's row swallows.
+		foreach (string owner in Owners.Reverse())
+		{
+			FullyQualifiedGitHubRepoName expected = FullName(owner);
+			app.Harness.Click($"repo/{expected}");
+			app.Harness.Step(2);
+
+			Assert.AreEqual(expected, app.Options.BaseRepo, $"Clicking {owner}'s {SharedName} did not select it.");
+		}
+	}
+
+	private static FullyQualifiedGitHubRepoName FullName(string owner) =>
+		FullyQualifiedGitHubRepoName.Create<FullyQualifiedGitHubRepoName>($"{owner}.{SharedName}");
+
+	private static ProjectDirectorOptions CreateOptions()
+	{
+		// Nothing is cloned, so the paths are never created; they only have to differ per owner.
+		string root = Path.Combine(Path.GetTempPath(), "projectdirector-repo-panel");
+		ProjectDirectorOptions options = new()
+		{
+			DevDirectory = AbsoluteDirectoryPath.Create<AbsoluteDirectoryPath>(root),
+		};
+
+		foreach (string ownerName in Owners)
+		{
+			GitHubOwnerName owner = GitHubOwnerName.Create<GitHubOwnerName>(ownerName);
+			_ = options.GitHubOwners.Add(owner);
+			options.Repos[FullName(ownerName)] = new GitHubRepository()
+			{
+				OwnerName = owner,
+				RepoName = GitHubRepoName.Create<GitHubRepoName>(SharedName),
+				LocalPath = FullyQualifiedLocalRepoPath.Create<FullyQualifiedLocalRepoPath>(Path.Combine(root, ownerName, SharedName)),
+				RemotePath = GitRemotePath.Create<GitRemotePath>($"https://github.com/{ownerName}/{SharedName}"),
+				MinFetchIntervalSeconds = 0,
+			};
+		}
+
+		return options;
+	}
+}