$ git clone -n https://src.fedoraproject.org/rpms/kitty.git /var/lib/mock/f41-build-1052097-19246/root/chroot_tmpdir/scmroot/kitty
Cloning into '/var/lib/mock/f41-build-1052097-19246/root/chroot_tmpdir/scmroot/kitty'...
$ git fetch origin 763f0800a07ccd6943161731cd06ac8472aa4768:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kitty
 * [new ref]         763f0800a07ccd6943161731cd06ac8472aa4768 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 763f080 rebuild for rhbz#2292712