Transitions that do not meet their conditions or validators appear in column

Summary

Two transitions to the same status with different conditions. Only one should display in the sprint board, according to the condition, but both are showing up.

Steps to Reproduce

1. Create a workflow with two statuses, e.g. To do and In Progress.

1. Set two transitions to In Progress with conditions. (e.g. One with transition with the Original Estimate field =! NULL and the other one with the Original Estimate field = NULL)

Expected Results

When moving an issue from To do to In Progress in a Sprint, you should see only one transition, according to the condition which the issue matches.

Actual Results

When moving an issue from To do to In Progress in a Sprint, you can see both transitions and when you drag the issue to the transition which does not match the condition, an error occurs:

Can't move (issue ID). You might not have permission, or the issue is missing required information. If you keep having this problem, contact your JIRA Administrator.

Workaround

No workarounds.