Now that 1.6 has been released, there is a neat drop-down that allows us to show any branch (+ the current one) rather than all branches. However, when selecting a branch on the left, the filter always goes to All Branches, and selecting the current branch won't return it to "Current Branch". The drop-down isn't the easiest to use, either, as if there are a lot of branches checked out, it will be cut off near the top of the screen and necessitate scrolling. Going back and forth from "All Branches" yields a lot of moving around the tree that isn't necessary.

My suggestion is that selecting a branch should force the filter to "selected branch + current branch". Selecting the current branch would bring it back to "current branch only". The user would need to select "All branches" explicitly to invoke it.

It should also be the case that "All Branches" and "Current branch" are always near the top of the list rather than scrolled down regardless of the currently selected branch filter.