Don't use EQUALITY flag when doing a symbol diff with library.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/16944

(cherry picked from commit adae4de438)

eeschema/lib_field.cpp

@@ -252,7 +252,7 @@ int LIB_FIELD::compare( const LIB_ITEM& aOther, int aCompareFlags ) const
 
     bool ignoreFieldText = false;
 
-    if( m_id == REFERENCE_FIELD && ( aCompareFlags & COMPARE_FLAGS::EQUALITY ) )
+    if( m_id == REFERENCE_FIELD && !( aCompareFlags & COMPARE_FLAGS::EQUALITY ) )
         ignoreFieldText = true;
 
     if( m_id == VALUE_FIELD && ( aCompareFlags & COMPARE_FLAGS::ERC ) )

eeschema/tools/ee_inspection_tool.cpp

@@ -336,10 +336,11 @@ int EE_INSPECTION_TOOL::DiffSymbol( const TOOL_EVENT& aEvent )
 
             flattenedSchSymbol->SetFields( fields );
 
-            int flags = LIB_ITEM::COMPARE_FLAGS::EQUALITY | LIB_ITEM::COMPARE_FLAGS::ERC;
-
-            if( flattenedSchSymbol->Compare( *flattenedLibSymbol, flags, r ) == 0 )
+            if( flattenedSchSymbol->Compare( *flattenedLibSymbol, LIB_ITEM::COMPARE_FLAGS::ERC,
+                                             r ) == 0 )
+            {
                 r->Report( _( "No relevant differences detected." ) );
+            }
 
             wxPanel*            panel = dialog->AddBlankPage( _( "Visual" ) );
             SYMBOL_DIFF_WIDGET* diff = constructDiffPanel( panel );