Output Styles - Date_Pub: edit tab for 'Short Date Format' is locked

I'm trying to edit the Date_Pub field in output styles editing: while I can modify the settings in the tab 'Long Date Format' I cannot make any changes in tab 'Short Date Format' (even though it is selected in the first tab); the whole tab seems to be locked.

On the first tab, if you

On the first tab, if you chose "Use Short Date Format", the long tab will be locked. If you chose "Use Long Date Format", the controls on the short date tab will be locked. 

No Paul, at least not in my

No Paul, at least not in my installation: the "Short Date Format" tab is locked even though I have selected "Short Date Format" on the first tab. The field descriptions etc. are black, not grey, but I cannot select or edit any field. This does not happen with the "Long Date Format" option.

Yes, I can reproduce this

Yes, I can reproduce this bug. It will be fixed in 7.24 release. Thanks.