Repository navigation
An existing DateTime attribute cannot be switched to localized by create or modify entity or alter entity #1521
Description
Summary
An existing DateTime attribute cannot be switched to localized by create or modify entity or alter entity. Related: #1297 and #1251 are about view entities only (closed).
Repro (generic)
create module Tmp;
create persistent entity Tmp.Item (Due: DateTime not localized);
create or modify persistent entity Tmp.Item (Due: DateTime); -- stays not localized
alter entity Tmp.Item modify attribute Due: DateTime; -- stays not localized
create or modify persistent entity Tmp.Item (Due: DateTime localized); -- the only form that flips it
Expected
The statement decides localization (the Studio Pro default is localized), or modify preserves the flag under a documented rule.
Actual
Silent keep. Impact: a client compared the UTC wall clock to local now, so overdue chips were wrong.
Tested with: Mendix 11.15, mxcli v0.26.0, field run. Not retested on v0.27.0 (reading the flag back needs a project and describe).
Activity
github-actions commentedon Oct 16, 2026
Issue Triage
Summary
The user reports that
create or modify entityandalter entitycannot change an existing DateTime attribute to localized; only redefining the attribute with thelocalizedkeyword works.Checklist of required bug‑report information
mxcli v0.26.0Mendix 11.15Missing information
Could you please attach the output of
mxcli diag --bundle(or at least the relevant session log) so we can see the internal state and any warnings/errors? This will help us reproduce and fix the issue.Thank you for reporting the problem!
Automated triage via OpenRouter — workflow source
Merge pull request #1428 from ako/fix/1521-datetime-localized-carry-n…