$ git clone -n https://src.fedoraproject.org/rpms/python-mistune.git /var/lib/mock/f40-build-2059288-49155/root/chroot_tmpdir/scmroot/python-mistune
Cloning into '/var/lib/mock/f40-build-2059288-49155/root/chroot_tmpdir/scmroot/python-mistune'...
$ git fetch origin 208e1274185e9d0bbd62661d147afba9f3fd4d1c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mistune
 * [new ref]         208e1274185e9d0bbd62661d147afba9f3fd4d1c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 208e127 Disable doc building on EL9