the standard area management panel cannot delete areas

[michel.eijgermans]

The standard area-management panel '/vision/ud_areas.pnl' has a bug.

The panel uses a hidden text-field named 'uid' wich gives a problem.
Code-line -> int iUid = uid.text; gives a warning in logviewer and is not returning the 'index' of the selected area. Due to this the delete button runs into the exception, no area is selected' and thus avoiding the deletion of the selected area.

When renaming the text-field to 'lbl_uid' and changing code accordingly to use this object-name resolves the issue and areas can be deleted again.

The problem at least occurs in 3.15pxx and 3.16p14, but my assumption that it this bug is there already a long time. Could it be that 'uid' became a reserved keyword?