$ git clone -n https://src.fedoraproject.org/rpms/xstdcmap.git /var/lib/mock/f42-build-879205-181639/root/chroot_tmpdir/scmroot/xstdcmap
Cloning into '/var/lib/mock/f42-build-879205-181639/root/chroot_tmpdir/scmroot/xstdcmap'...
$ git fetch origin 5cc8c203e4e770df60bc702121b8027b8a8b1420:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xstdcmap
 * [new ref]         5cc8c203e4e770df60bc702121b8027b8a8b1420 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cc8c20 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild