This Issues is RTC on jissues: http://issues.joomla.org/tracker/joomla-cms/5917 but merged here: joomla/joomla-cms#5917

maybe a sync issue?

If you try to save changes (e.g. categories) you get something like this:

array(7) { ["exception"]=> string(21) "422 Validation Failed" ["user"]=> string(6) "joomla" ["project"]=> string(10) "joomla-cms" ["issueNo"]=> string(4) "5917" ["state"]=> string(4) "open" ["old_state"]=> string(4) "open" ["data"]=> array(11) { ["status"]=> string(1) "4" ["priority"]=> string(1) "3" ["rel_type"]=> string(0) "" ["rel_number"]=> string(0) "" ["build"]=> string(7) "staging" ["easy"]=> string(1) "0" ["milestone_id"]=> string(12) "No Milestone" ["title"]=> string(19) "Fix debug on modals" ["description_raw"]=> string(585) "##### This fixes #5916 #### Testing On the latest staging try: create a user note Enable debug go to administrator/index.php?option=com_users&view=users click on the display note button observe the rendered modal Apply patch and reload the page and the modal #### Preview Before: ![screen shot 2015-01-29 at 4 07 23](https://cloud.githubusercontent.com/assets/3889375/5951476/d7acec0e-a770-11e4-8fbc-d60dcccc7b33.png) After: ![screen shot 2015-01-29 at 4 40 20](https://cloud.githubusercontent.com/assets/3889375/5951483/fc89cf7e-a770-11e4-9d8b-b64dc8680502.png) " ["id"]=> string(4) "6645" ["issue_number"]=> string(4) "5917" } } Unrecoverable GitHub error - sry ;(

Github say 422 Validation Failed.