$ git clone -n https://src.fedoraproject.org/rpms/evolution.git /var/lib/mock/f40-build-2479033-61612/root/chroot_tmpdir/scmroot/evolution
Cloning into '/var/lib/mock/f40-build-2479033-61612/root/chroot_tmpdir/scmroot/evolution'...
$ git fetch origin e6a9f7854c910e1a0488c580edbc290c229e6aef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution
 * [new ref]         e6a9f7854c910e1a0488c580edbc290c229e6aef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6a9f78 Update to 3.51.2