Branch selection dropdown disappeared from the project overview page

Symptoms

1. The project overview page has a dropdown that allows selecting the branch to be viewed.
2. This dropdown disappeared and is no longer visible.

Cause

This is expected behavior. The affected project has no active branches other than the default branch (which is always considered active). The branch dropdown on the project overview page shows only active branches. When there are no active branches other than the default one, this dropdown is hidden.

Resolution

This is expected. Once there is at least one additional active branch in the project, the dropdown will reappear.

Additionally, the branch dropdown on the build configuration overview page is always present and shows all branches.