$ git clone -n https://src.fedoraproject.org/rpms/jansi.git /var/lib/mock/f40-build-2118359-50725/root/chroot_tmpdir/scmroot/jansi
Cloning into '/var/lib/mock/f40-build-2118359-50725/root/chroot_tmpdir/scmroot/jansi'...
$ git fetch origin e5569eda80eca056517821de9d1f33bd32d4b486:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jansi
 * [new ref]         e5569eda80eca056517821de9d1f33bd32d4b486 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5569ed Update javapackages test plan to f40