$ git clone -n https://src.fedoraproject.org/rpms/perl-true.git /var/lib/mock/f31-build-46629-26595/root/chroot_tmpdir/scmroot/perl-true
Cloning into '/var/lib/mock/f31-build-46629-26595/root/chroot_tmpdir/scmroot/perl-true'...
$ git reset --hard bd1a6a5618a9b94965e49e9d5ab7636ecdd4de77
HEAD is now at bd1a6a5 Perl 5.30 rebuild