$ git clone -n https://src.fedoraproject.org/rpms/perl-Syntax-Keyword-Match.git /var/lib/mock/f39-build-1745836-41406/root/chroot_tmpdir/scmroot/perl-Syntax-Keyword-Match
Cloning into '/var/lib/mock/f39-build-1745836-41406/root/chroot_tmpdir/scmroot/perl-Syntax-Keyword-Match'...
$ git fetch origin 6b261b04d1f9b0466dbbc52791a58ba5877d54ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Syntax-Keyword-Match
 * [new ref]         6b261b04d1f9b0466dbbc52791a58ba5877d54ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b261b0 0.13 bump