add TODO comment for a bug

This bug is the first one that was discovered because it is now much
easier to see which parts of the code work on cells, pattern areas and
whole columns/rows.

Change-Id: I8f22bf421298947d65bfc2fc9c986d85169e6545
Reviewed-on: https://gerrit.libreoffice.org/23636Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>

sc/source/core/data/fillinfo.cxx

@@ -363,6 +363,8 @@ bool handleConditionalFormat(ScConditionalFormatList* pCondFormList, const std::
                 pInfo->pConditionSet = &pStyleSheet->GetItemSet();
                 bAnyCondition = true;
 
+                // TODO: moggi: looks like there is a but around bHidden and bHideFormula
+                //              They are normally for the whole pattern and not for a single cell
                 // we need to check already here for protected cells
                 const SfxPoolItem* pItem;
                 if ( bTabProtect && pInfo->pConditionSet->GetItemState( ATTR_PROTECTION, true, &pItem ) == SfxItemState::SET )