Last modified: 2013-11-25 12:39:41 UTC
Reported on EnWiki by John Broughton: Steps to Reproduce: (1) Click the "transclusion" icon (2) In the lower left of the resulting dialog box, hover over the "+" sign until the bracket pair ("[ ]") is visible; click on that. (3) Click on "[ ] Content" (4) Click on "Apply changes" Now none of the "insert" icons work, and a number of other icons on the tool bar also don't work. (The user guide is silent as to what these brackets are ''supposed'' to do.) I can confirm the same issue also occurs for me on Firefox 22, Monobook interface.
*** Bug 51437 has been marked as a duplicate of this bug. ***
We fixed this quite some time ago; apologies for the slowness of updating this bug report.