$ git clone -n https://src.fedoraproject.org/rpms/libkrunfw.git /var/lib/mock/f41-build-side-1-2952317-35512/root/chroot_tmpdir/scmroot/libkrunfw
Cloning into '/var/lib/mock/f41-build-side-1-2952317-35512/root/chroot_tmpdir/scmroot/libkrunfw'...
$ git fetch origin b40ac868411491b480ecb035054c7d0b82bf6803:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkrunfw
 * [new ref]         b40ac868411491b480ecb035054c7d0b82bf6803 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b40ac86 Update to version 4.4.2