$ git clone -n https://src.fedoraproject.org/rpms/cosmic-edit.git /var/lib/mock/f45-build-39700-750/root/chroot_tmpdir/scmroot/cosmic-edit
Cloning into '/var/lib/mock/f45-build-39700-750/root/chroot_tmpdir/scmroot/cosmic-edit'...
$ git fetch origin f65d2e83cc64d64712aa012f6fd916ece8a07a45:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cosmic-edit
 * [new ref]         f65d2e83cc64d64712aa012f6fd916ece8a07a45 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f65d2e8 Update to 1.6.0