$ git clone -n https://src.fedoraproject.org/rpms/perl-Cache-Mmap.git /var/lib/mock/f31-build-69252-30295/root/chroot_tmpdir/scmroot/perl-Cache-Mmap
Cloning into '/var/lib/mock/f31-build-69252-30295/root/chroot_tmpdir/scmroot/perl-Cache-Mmap'...
$ git reset --hard 5caca3c321f68790769affd56d2a5450da11d7d1
HEAD is now at 5caca3c - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild