Last modified: 2012-12-06 00:35:16 UTC
Pressing backspace creating a slug then deletes again: * Create a new page (or go to an existing one), and enter "AB\nCD\nEF" * Place the cursor down-page of "F" and press backspace; "F" is deleted correctly. * Then press backspace again; "E" is deleted, as is the remaining slug, and the cursor moves us.
Fixed here: https://gerrit.wikimedia.org/r/#/c/37162/