$ git clone -n https://src.fedoraproject.org/rpms/gvfs.git /var/lib/mock/f40-build-2597617-62858/root/chroot_tmpdir/scmroot/gvfs
Cloning into '/var/lib/mock/f40-build-2597617-62858/root/chroot_tmpdir/scmroot/gvfs'...
$ git fetch origin d4d65349ace12479fff67a5e4c0cc2bc60ba6f58:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gvfs
 * [new ref]         d4d65349ace12479fff67a5e4c0cc2bc60ba6f58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4d6534 Enable OneDrive support for Fedora