Updated:
I have merged my branch "A" into the develop branch "B", but found some code not really there yet so reverted it in the branch "B".
Now I update the code in "A" and try to create a new pull request for merging "A" to "B" again. I just found that I am unable to create the new pull request with the earlier changes (the bits that have been reverted). Any suggestion?
Besides, there are some new commit into the "B" after the revert.