$ git clone -n https://src.fedoraproject.org/rpms/graphite2.git /var/lib/mock/f39-build-1778722-41532/root/chroot_tmpdir/scmroot/graphite2
Cloning into '/var/lib/mock/f39-build-1778722-41532/root/chroot_tmpdir/scmroot/graphite2'...
$ git fetch origin 8136a583fd2256dcf796636e015c492d68031143:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/graphite2
 * [new ref]         8136a583fd2256dcf796636e015c492d68031143 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8136a58 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild