$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-Reflow.git /var/lib/mock/f45-build-27070-620/root/chroot_tmpdir/scmroot/perl-Text-Reflow
Cloning into '/var/lib/mock/f45-build-27070-620/root/chroot_tmpdir/scmroot/perl-Text-Reflow'...
$ git fetch origin 417c6c90ddfc276db2058f7aa1bf863a16a5d61e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-Reflow
 * [new ref]         417c6c90ddfc276db2058f7aa1bf863a16a5d61e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 417c6c9 Perl 5.44 rebuild