$ git clone -n https://src.fedoraproject.org/rpms/msitools.git /var/lib/mock/f40-build-2201178-51809/root/chroot_tmpdir/scmroot/msitools
Cloning into '/var/lib/mock/f40-build-2201178-51809/root/chroot_tmpdir/scmroot/msitools'...
$ git fetch origin 506ab836553e2f0cca0a476c4f5408562d865a60:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/msitools
 * [new ref]         506ab836553e2f0cca0a476c4f5408562d865a60 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 506ab83 Drop *.patch