guide-key crashes emacs in org-agenda when org-agenda-bulk-action is called

[srustamo]

In org-agenda buffer, you can add/remove flags on multiple items in the agenda by selecting them using m, then B (org-agenda-bulk-action) and then + (to add tags) or - (to remove tags).

However, hitting refresh after the above crashes emacs. Disabling guide-key resolves the issue.