What version are you running?
ReviewBoard 1.7.12
What's the URL of the page containing the problem?
NA
What steps will reproduce the problem?
1. Create a review request
2. edit depends_on field
3. Make some changes to the review request like pass comment or upload a new diff
4. The depends on field will be removed and show null
What is the expected output? What do you see instead?
The depends on field should hold the value
What operating system are you using? What browser?
Linux
Please provide any additional information below.