make sure vector elements are initialized properly

Change-Id: If18268a26118ea587f474c21b7ca0f1fa4622744
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/126469
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>

desktop/inc/lib/init.hxx

@@ -197,7 +197,7 @@ namespace desktop {
         std::vector<bool> m_updatedTypes; // index is type, value is if set
         struct PerViewIdData
         {
-            bool set; // value is if set
+            bool set = false; // value is if set
             int sourceViewId;
         };
         // Flat_map is used in preference to unordered_map because the map is accessed very often.

desktop/source/lib/init.cxx

@@ -1500,7 +1500,7 @@ void CallbackFlushHandler::setUpdatedTypePerViewId( int nType, int nViewId, int
     assert(isUpdatedTypePerViewId(nType));
     std::vector<PerViewIdData>& types = m_updatedTypesPerViewId[ nViewId ];
     if( types.size() <= o3tl::make_unsigned( nType ))
-        types.resize( nType + 1 ); // new are default-constructed, i.e. false
+        types.resize( nType + 1 ); // new are default-constructed, i.e. 'set' is false
     types[ nType ] = PerViewIdData{ value, nSourceViewId };
 }