I am using Mercurial. I have a file X that has two versions in two different branches. I have a version in the R1 branch and an updated version with bugfixes in the R0 branch. I have merged the fixes from R0 into R1, but somehow file X was not properly merged.
I now want to move the version of X that is in my R0 branch into the R1 branch.
How can I do this?