Since the homebrew guys now have removed the option of appying the mutt sidebar patch during installation i went searching and found someone who had created an updated mutt sidebar patch for version 1.5.22 of mutt (every mutt sidebar versions seems to always be incompatible with the previous or the next).
The patch however, which is just a .patch file on a github repository, located here https://github.com/nedos/mutt-sidebar-patch doesnt contain any installation instructons. Since the homebrew package is a binary package im not sure how to install this since you usually need to point the patch command at a file you want to patch.
After some more searching i found out how someone had used a patch they found on git to patch some other software, they had cloned the git repository and used the git command to apply the patch, but then again im dont know the github repository url (if git is being used) for the 1.5.22 version of mutt, and im also not sure if i would have to recompile it.
Can someone point me in the right direction and give me some hints? Preferably a solution. Thanks for your time.