Issue Summary

Bamboo will checkout the latest changelist in the first build even though it does not exist in the branch. When switching branch in the repository, Bamboo does not checkout the changelist that exist in the branch too.

Steps to Reproduce

1. Create branch1 (changelist 10) and branch2 (changelist 11 - the latest changelist in repo) in Perforce
2. Configure a plan to checkout branch1
3. Run the plan
4. Add a commit into branch2 - latest changelist 12
5. Run the plan
6. Add a commit into branch1 - latest changelist 13
7. Run the plan
8. Edit the repository to configure it to checkout branch2
9. Run the plan

Expected Results

1. First run will show revision 10
2. Second run will show revision 10
3. Third run will show revision 13
4. Fourth run will show 12

Actual Results

1. First run show revision 11 - this changelist does not exist in branch1
2. Second run show revision 11 - new changelist 12 in branch2 does not affect the build
3. Third run show revision 13 - only detect new changelist in branch1
4. Fourth run will show 13 - this changelist does not exist in branch2