$ git clone -n https://src.fedoraproject.org/rpms/subversion.git /var/lib/mock/f41-build-814590-148981/root/chroot_tmpdir/scmroot/subversion
Cloning into '/var/lib/mock/f41-build-814590-148981/root/chroot_tmpdir/scmroot/subversion'...
$ git fetch origin 82b5b264bd0fdc22af3a0265b2f06fc681f50310:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/subversion
 * [new ref]         82b5b264bd0fdc22af3a0265b2f06fc681f50310 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82b5b26 Perl 5.40 rebuild