$ git clone -n https://src.fedoraproject.org/rpms/xmlcopyeditor.git /var/lib/mock/f40-build-1051517-19230/root/chroot_tmpdir/scmroot/xmlcopyeditor
Cloning into '/var/lib/mock/f40-build-1051517-19230/root/chroot_tmpdir/scmroot/xmlcopyeditor'...
$ git fetch origin a133b7b50cfdc00e41ee38664a1f1da25e208e8d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmlcopyeditor
 * [new ref]         a133b7b50cfdc00e41ee38664a1f1da25e208e8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a133b7b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild