$ git clone -n https://src.fedoraproject.org/rpms/deskflow.git /var/lib/mock/f42-build-side-1-3504312-45983/root/chroot_tmpdir/scmroot/deskflow
Cloning into '/var/lib/mock/f42-build-side-1-3504312-45983/root/chroot_tmpdir/scmroot/deskflow'...
$ git fetch origin d0f3873decd7f3235cf4ac3773e82542609d5024:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deskflow
 * [new ref]         d0f3873decd7f3235cf4ac3773e82542609d5024 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d0f3873 Update to 1.21.2