$ git clone -n https://src.fedoraproject.org/rpms/perl-PerlIO-Layers.git /var/lib/mock/f31-build-69200-30291/root/chroot_tmpdir/scmroot/perl-PerlIO-Layers
Cloning into '/var/lib/mock/f31-build-69200-30291/root/chroot_tmpdir/scmroot/perl-PerlIO-Layers'...
$ git reset --hard 9924a4f5aff1c86abad51a189a65aae31ac0421e
HEAD is now at 9924a4f - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild