Make sure LIB_ID escape context allows for formatting constructs.

Also make sure that value field is updated from name changes when the
symbol is a power symbol (even if it's from the schematic instead of
the library).

Fixes https://gitlab.com/kicad/code/kicad/issues/11093

common/string_utils.cpp

@@ -143,6 +143,14 @@ bool ConvertSmartQuotesAndDashes( wxString* aString )
 wxString EscapeString( const wxString& aSource, ESCAPE_CONTEXT aContext )
 {
     wxString          converted;
+    std::vector<bool> braceStack;    // true == formatting construct
+
+    auto hasFormattingPrefix =
+            [&]()
+            {
+                static wxString prefixes = wxT( "~_^" );
+                return !converted.IsEmpty() && prefixes.Find( converted.Last() ) >= 0;
+            };
 
     converted.reserve( aSource.length() );
 
@@ -159,7 +167,7 @@ wxString EscapeString( const wxString& aSource, ESCAPE_CONTEXT aContext )
         }
         else if( aContext == CTX_LIBID )
         {
-            if( c == '{' )
+            if( c == '{' && !hasFormattingPrefix() )
                 converted += "{brace}";
             else if( c == '/' )
                 converted += "{slash}";
@@ -238,8 +246,10 @@ wxString EscapeString( const wxString& aSource, ESCAPE_CONTEXT aContext )
                 converted += c;
         }
         else
+        {
             converted += c;
         }
+    }
 
     return converted;
 }

eeschema/dialogs/dialog_lib_symbol_properties.cpp

@@ -446,7 +446,7 @@ void DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanging( wxGridEvent& event )
 
 void DIALOG_LIB_SYMBOL_PROPERTIES::OnSymbolNameText( wxCommandEvent& event )
 {
-    if( !m_Parent->IsSymbolFromSchematic() )
+    if( !m_Parent->IsSymbolFromSchematic() || m_OptionPower->IsChecked() )
         m_grid->SetCellValue( VALUE_FIELD, FDC_VALUE, m_SymbolNameCtrl->GetValue() );
 }
 

eeschema/fields_grid_table.cpp

@@ -561,7 +561,7 @@ void FIELDS_GRID_TABLE<T>::SetValue( int aRow, int aCol, const wxString &aValue
                 value = fn.GetFullPath();
             }
         }
-        else if( m_frame->IsType( FRAME_SCH_SYMBOL_EDITOR ) && aRow == VALUE_FIELD )
+        else if( m_parentType == SCH_SYMBOL_T && aRow == VALUE_FIELD )
         {
             value = EscapeString( value, CTX_LIBID );
         }