$ git clone -n https://src.fedoraproject.org/rpms/perl-B-Hooks-OP-PPAddr.git /var/lib/mock/f31-build-44638-26250/root/thebuilddir/tmp/scmroot/perl-B-Hooks-OP-PPAddr
Cloning into '/var/lib/mock/f31-build-44638-26250/root/thebuilddir/tmp/scmroot/perl-B-Hooks-OP-PPAddr'...
$ git reset --hard 2ac16ef9b791d5452f6a0bbb40db9055b551d2c3
HEAD is now at 2ac16ef Perl 5.30 rebuild