$ git clone -n https://src.fedoraproject.org/rpms/epiphany.git /var/lib/mock/f40-build-1493316-23853/root/chroot_tmpdir/scmroot/epiphany
Cloning into '/var/lib/mock/f40-build-1493316-23853/root/chroot_tmpdir/scmroot/epiphany'...
$ git fetch origin 7a45f0865b87c944281cc1818959540506b9853f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/epiphany
 * [new ref]         7a45f0865b87c944281cc1818959540506b9853f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a45f08 Update to 46.2