$ git clone -n https://src.fedoraproject.org/rpms/python-knack.git /var/lib/mock/f41-build-side-2-python-2718008-30590/root/chroot_tmpdir/scmroot/python-knack
Cloning into '/var/lib/mock/f41-build-side-2-python-2718008-30590/root/chroot_tmpdir/scmroot/python-knack'...
$ git fetch origin 000f45ae7c383870d8403159a0867e37467a3bd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-knack
 * [new ref]         000f45ae7c383870d8403159a0867e37467a3bd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 000f45a Update to 0.12.0 rhbz#2297874