To reproduce:
- visit https://secure.phabricator.com/tag/quicksand/ to see Quicksand project board
- invoke "create task" in the Backlog column and then cancel the subsequent dialogue
- navigate to Quicksand project home page by clicking top icon on the left side nav
- navigate back to the Quicksand project board by clicking the second icon on the left side nav
- invoke "create task" in the backlog column
EXPECTED - create task dialogue pops as before
ACTUAL - no dialogue pops; errors observed in javascript error log