$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-Mmap.git /var/lib/mock/f31-build-64491-29570/root/chroot_tmpdir/scmroot/perl-Sys-Mmap
Cloning into '/var/lib/mock/f31-build-64491-29570/root/chroot_tmpdir/scmroot/perl-Sys-Mmap'...
$ git reset --hard a18deb0dbf9f9f75e95ad16f5beaa7584cafdfc0
HEAD is now at a18deb0 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild