$ git clone -n https://src.fedoraproject.org/rpms/perl-Perl-Destruct-Level.git /var/lib/mock/f43-perl-60947838-6586617/root/chroot_tmpdir/scmroot/perl-Perl-Destruct-Level
Cloning into '/var/lib/mock/f43-perl-60947838-6586617/root/chroot_tmpdir/scmroot/perl-Perl-Destruct-Level'...
$ git fetch origin a002109a726f789398fd098f9a6289e19c54116d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Perl-Destruct-Level
 * [new ref]         a002109a726f789398fd098f9a6289e19c54116d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a002109 Perl 5.42 rebuild