$ git clone -n https://src.fedoraproject.org/rpms/perl-B-Compiling.git /var/lib/mock/f31-build-100060-33220/root/chroot_tmpdir/scmroot/perl-B-Compiling
Cloning into '/var/lib/mock/f31-build-100060-33220/root/chroot_tmpdir/scmroot/perl-B-Compiling'...
$ git reset --hard a236978cd186adebd690246a2387810f3eb1e812
HEAD is now at a236978 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild