$ git clone -n https://src.fedoraproject.org/rpms/xcompmgr.git /var/lib/mock/f40-build-799109-142142/root/chroot_tmpdir/scmroot/xcompmgr
Cloning into '/var/lib/mock/f40-build-799109-142142/root/chroot_tmpdir/scmroot/xcompmgr'...
$ git fetch origin dcca665bb5eeb64ec63c36389ff77c47d59ebd42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xcompmgr
 * [new ref]         dcca665bb5eeb64ec63c36389ff77c47d59ebd42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dcca665 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild