$ git clone -n https://src.fedoraproject.org/rpms/tinc.git /var/lib/mock/f39-build-1622220-38782/root/chroot_tmpdir/scmroot/tinc
Cloning into '/var/lib/mock/f39-build-1622220-38782/root/chroot_tmpdir/scmroot/tinc'...
$ git fetch origin a7cee042ee433a9f87869fa9077c65fd9a10e994:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tinc
 * [new ref]         a7cee042ee433a9f87869fa9077c65fd9a10e994 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7cee04 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild