$ git clone -n https://src.fedoraproject.org/rpms/cosmic-panel.git /var/lib/mock/f41-build-857482-168115/root/chroot_tmpdir/scmroot/cosmic-panel
Cloning into '/var/lib/mock/f41-build-857482-168115/root/chroot_tmpdir/scmroot/cosmic-panel'...
$ git fetch origin e6434b30f01afa54f86fb109acafe7f2388360ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cosmic-panel
 * [new ref]         e6434b30f01afa54f86fb109acafe7f2388360ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6434b3 "Update to 1.0.0~alpha.2"