Fix user matching on multiple edit

Bugzilla/Bug.pm

@@ -1098,8 +1098,8 @@ sub save_dependencies
     if (@add_deps)
     {
         Bugzilla->dbh->do(
-            'INSERT INTO dependencies (blocked, dependson) VALUES ('.
-            join(', ', map { "($_->{blocked}, $_->{dependson})" } @add_deps).')'
+            'INSERT INTO dependencies (blocked, dependson) VALUES '.
+            join(', ', map { "($_->{blocked}, $_->{dependson})" } @add_deps)
         );
     }
     if (%touch_bugs)

process_bug.cgi

@@ -117,6 +117,9 @@ if ($ARGS->{dontchange})
         if ($ARGS->{$name} eq $ARGS->{dontchange} ||
             ref $ARGS->{$name} && @{$ARGS->{$name}} == 1 && $ARGS->{$name}->[0] eq $ARGS->{dontchange})
         {
+            # FIXME remove these $cgi->delete when Bugzilla::User::match_field won't need CGI
+            $cgi->delete($name);
+            $cgi->delete("defined_$name");
             delete $ARGS->{$name};
             delete $ARGS->{"defined_$name"};
         }