$ git clone -n https://src.fedoraproject.org/rpms/xteddy.git /var/lib/mock/f41-build-874486-16213/root/chroot_tmpdir/scmroot/xteddy
Cloning into '/var/lib/mock/f41-build-874486-16213/root/chroot_tmpdir/scmroot/xteddy'...
$ git fetch origin c863d9954fff0b7e97966bad4e153b8a351af074:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xteddy
 * [new ref]         c863d9954fff0b7e97966bad4e153b8a351af074 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c863d99 Eliminate use of obsolete %patchN syntax (#2283636)