Fix modeler dialog doesn't respect hide from modeler flag

python/core/processing/qgsprocessingalgorithm.sip

@@ -179,6 +179,7 @@ alphanumeric characters only and no spaces or other formatting characters.
 
 .. seealso:: :py:func:`group`
 %End
+
     virtual Flags flags() const;
 %Docstring
 Returns the flags indicating how and when the algorithm operates and should be exposed to users.

python/plugins/processing/modeler/ModelerDialog.py

@@ -711,7 +711,7 @@ def addAlgorithmsFromProvider(self, provider, parent):
 
         # Add algorithms
         for alg in algs:
-            if alg.flags() & QgsProcessingAlgorithm.FlagHideFromToolbox:
+            if alg.flags() & QgsProcessingAlgorithm.FlagHideFromModeler:
                 continue
             groupItem = None
             if alg.group() in groups:

src/core/processing/qgsprocessingalgorithm.h

@@ -206,7 +206,7 @@ class CORE_EXPORT QgsProcessingAlgorithm
      * alphanumeric characters only and no spaces or other formatting characters.
      * \see group()
      */
-    virtual QString groupId() const { return QString(); };
+    virtual QString groupId() const { return QString(); }
 
     /**
      * Returns the flags indicating how and when the algorithm operates and should be exposed to users.