#
        # Additionally, % must be escaped because it is used for escaping
        # and we want our escaped refname to be reversible
-       $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
+       $refname =~ s{([ \%~\^:\?\*\[\t])}{sprintf('%%%02X',ord($1))}eg;
 
        # no slash-separated component can begin with a dot .
        # /.* becomes /%2E*
        my @merged_commit_ranges;
        # find the tip
        for my $range ( @ranges ) {
+               if ($range =~ /[*]$/) {
+                       warn "W: Ignoring partial merge in svn:mergeinfo "
+                               ."dirprop: $source:$range\n";
+                       next;
+               }
                my ($bottom, $top) = split "-", $range;
                $top ||= $bottom;
                my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top );
                my $top_commit = $gs->find_rev_before( $top, 1, $bottom );
 
                unless ($top_commit and $bottom_commit) {
-                       warn "W:unknown path/rev in svn:mergeinfo "
+                       warn "W: unknown path/rev in svn:mergeinfo "
                                ."dirprop: $source:$range\n";
                        next;
                }
 
 sub uri_encode {
        my ($f) = @_;
-       $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
+       $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#sprintf("%%%02X",ord($1))#eg;
        $f
 }