$ git clone -n https://src.fedoraproject.org/rpms/python-tasklib.git /var/lib/mock/f39-build-1426387-31595/root/chroot_tmpdir/scmroot/python-tasklib
Cloning into '/var/lib/mock/f39-build-1426387-31595/root/chroot_tmpdir/scmroot/python-tasklib'...
$ git fetch origin b2e4d62979dcb669493fd2a8467bba756365c57a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tasklib
 * [new ref]         b2e4d62979dcb669493fd2a8467bba756365c57a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2e4d62 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild