$ git clone -n https://src.fedoraproject.org/rpms/wvdial.git /var/lib/mock/f41-build-726060-13125/root/chroot_tmpdir/scmroot/wvdial
Cloning into '/var/lib/mock/f41-build-726060-13125/root/chroot_tmpdir/scmroot/wvdial'...
$ git fetch origin a9e082d04a2ecfb6a2e274694e6825db08a7400a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wvdial
 * [new ref]         a9e082d04a2ecfb6a2e274694e6825db08a7400a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9e082d Eliminate use of obsolete %patchN syntax (#2283636)