Cannot open icon picker(?) when editing language
Upgraded from VaultWiki 4.0.25 -> 4.1.0 Beta 2 (actually I downloaded Beta 3, but as indicated in this ticket, the version string seems to be invalid) on XF 2.1.3 (updated from XF 1.5)
When editing a language and clicking on the "..." button next to the icon (apparently an icon chooser, according to the input class?), a short ajax loading is indicated by XF, but nothing else changes. No chooser (or anything else) opens.