$ git clone -n https://src.fedoraproject.org/rpms/khal.git /var/lib/mock/f41-build-side-1-2647372-27301/root/chroot_tmpdir/scmroot/khal
Cloning into '/var/lib/mock/f41-build-side-1-2647372-27301/root/chroot_tmpdir/scmroot/khal'...
$ git fetch origin d92fce29d75bf7721ba550b61d95e2c6222f8e97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/khal
 * [new ref]         d92fce29d75bf7721ba550b61d95e2c6222f8e97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d92fce2 Update to 0.11.3