$ git clone -n https://src.fedoraproject.org/rpms/perl-POSIX-AtFork.git /var/lib/mock/f31-build-45645-26376/root/chroot_tmpdir/scmroot/perl-POSIX-AtFork
Cloning into '/var/lib/mock/f31-build-45645-26376/root/chroot_tmpdir/scmroot/perl-POSIX-AtFork'...
$ git reset --hard f884e78199a82f382c8160af80dbfa5ac2f9efa0
HEAD is now at f884e78 Perl 5.30 rebuild