$ git clone -n https://src.fedoraproject.org/rpms/perl-Syntax-Keyword-Dynamically.git /var/lib/mock/f41-build-816869-150476/root/chroot_tmpdir/scmroot/perl-Syntax-Keyword-Dynamically
Cloning into '/var/lib/mock/f41-build-816869-150476/root/chroot_tmpdir/scmroot/perl-Syntax-Keyword-Dynamically'...
$ git fetch origin 90ed33eef3078542f3863028d5b4bd2b1f6ae859:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Syntax-Keyword-Dynamically
 * [new ref]         90ed33eef3078542f3863028d5b4bd2b1f6ae859 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90ed33e Perl 5.40 re-rebuild of bootstrapped packages