Last modified: 2013-04-26 00:54:07 UTC
This has reappeared (in live on hewiki and others) - if the page on load has bold annotation on some text, pressing the "bold" button doesn't remove bold but adds a second bold annotation (which can be removed, but not in a way that stops the text being bold).
Related URL: https://gerrit.wikimedia.org/r/60948 (Gerrit Change I77f00e63c8732420063b0453fede7f453083c913)
Roan fixing now.
Merged and deployed.