Issue Summary

Trigger condition "Only run Build if other Plans are currently passing" doesn't allow to use plan branch key 

Steps to Reproduce

1. Create plan A with key PRJ-PLANA.
2. Create plan branch which has a key PRJ-PLANA0
3. Create plan B with trigger 
4. Add condition "Only run Build if other Plans are currently passing" and provide key PRJ-PLANA0
5. Save trigger configuration

Expected Results

Configuration is saved and used for trigger condition.

Actual Results

Validation error

PLANBRANCH-KEY is a job and can not be used in this field.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available