Redmine

1. Steps to reproduce

1. Have "Accept time logs on closed issues" disabled (Administration > Settings > Time tracking)
2. Open an issue with an open status
3. Change status to a closed status
4. Fill in "Hours" in the Log time block but leave "Activity" blank
5. Click Save

1. Expected behavior

The Log time block remains visible so the user can correct the validation error.

1. Actual behavior

The Log time block disappears after the validation error is shown, making it impossible
to correct the time entry without reloading the page.

1. Root cause

`time_loggable?` checks `closed?` which reflects the in-memory state after the failed save.
The issue object already has the closed status assigned even though the save was rolled back.

1. Proposed fix

In `app/views/issues/_edit.html.erb`, line 12:

Change:
<% if @issue.time_loggable? %>

To:
<% if @issue.time_loggable? || (!@issue.was_closed? && @issue.errors.any?) %>

This uses the existing `was_closed?` method (which checks `status_was`) to detect the
original status before the failed save attempt.