$ git clone -n https://src.fedoraproject.org/rpms/cosmic-edit.git /var/lib/mock/f41-build-side-1-3103857-39363/root/chroot_tmpdir/scmroot/cosmic-edit
Cloning into '/var/lib/mock/f41-build-side-1-3103857-39363/root/chroot_tmpdir/scmroot/cosmic-edit'...
$ git fetch origin 918f7ed72cc86f1dfde768793255285f1824c64f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cosmic-edit
 * [new ref]         918f7ed72cc86f1dfde768793255285f1824c64f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 918f7ed "Update to 1.0.0~alpha.3"