#4554 (ok 4.2.10) Grid-editing timestamp column forces datepicker

[Pierre Paour]

When editing a row through the grid editor, for timestamp columns, I can't directly edit the value, but have to use the datepicker, which is inconvenient when all I want to do is change the year for example.

Editing the row in the standard (non-grid) editor does let me directly edit timestamp values.

[Marc Delisle]

Fix: https://github.com/phpmyadmin/phpmyadmin/pull/1374

[Pierre Paour]

Amazingly fast as always :-)