$ git clone -n https://src.fedoraproject.org/rpms/squeekboard.git /var/lib/mock/f41-build-side-1-3135026-39765/root/chroot_tmpdir/scmroot/squeekboard
Cloning into '/var/lib/mock/f41-build-side-1-3135026-39765/root/chroot_tmpdir/scmroot/squeekboard'...
$ git fetch origin c4f06cf8467492aa378a9b8ce0b99b972eee113d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/squeekboard
 * [new ref]         c4f06cf8467492aa378a9b8ce0b99b972eee113d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4f06cf Update to 1.42.0