See on search content tool on ODF programs.

Sample of use case:
I have a ODF content that title is no more modifiable because of its pilotage status.
In search grid, I try to edit the title.
I enter then automatically exit edit mode.
The content keeps locked

Other use case:
The title is externalizable and its status is external.
Same effect when trying to edit the title in grid

Can be reproduce when clicking on "code" cell that is never modifiable.

Sometimes but difficult to reproduce, the title is modifiable, I can enter in edit mode but I do nothing. Exit edition. The content keeps locked.