$ git clone -n https://src.fedoraproject.org/rpms/kmplayer.git /var/lib/mock/f40-build-802988-144154/root/chroot_tmpdir/scmroot/kmplayer
Cloning into '/var/lib/mock/f40-build-802988-144154/root/chroot_tmpdir/scmroot/kmplayer'...
$ git fetch origin 8117632e0cf6b72be87c79d1591cbcd23fdcaccd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmplayer
 * [new ref]         8117632e0cf6b72be87c79d1591cbcd23fdcaccd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8117632 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild