$ git clone -n https://src.fedoraproject.org/rpms/kf5-kmediaplayer.git /var/lib/mock/f40-build-787974-134983/root/chroot_tmpdir/scmroot/kf5-kmediaplayer
Cloning into '/var/lib/mock/f40-build-787974-134983/root/chroot_tmpdir/scmroot/kf5-kmediaplayer'...
$ git fetch origin b44bfe58fc026c831f9ac67ba417a9f0e9ccea87:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kmediaplayer
 * [new ref]         b44bfe58fc026c831f9ac67ba417a9f0e9ccea87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b44bfe5 5.115.0