$ git clone -n https://src.fedoraproject.org/rpms/pycairo.git /var/lib/mock/f40-build-2024309-46988/root/chroot_tmpdir/scmroot/pycairo
Cloning into '/var/lib/mock/f40-build-2024309-46988/root/chroot_tmpdir/scmroot/pycairo'...
$ git fetch origin cdbb5c1baf4491115cc00a428b1f79332cf8158b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pycairo
 * [new ref]         cdbb5c1baf4491115cc00a428b1f79332cf8158b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cdbb5c1 Update to 1.25.1