assembly: fix auto solve

freecad/asm3/assembly.py

@@ -3573,6 +3573,8 @@ class Assembly(AsmGroup):
 
     @classmethod
     def doAutoSolve(cls):
+        if not cls._PendingSolve:
+            return
         canSolve = cls.canAutoSolve()
         if cls._Busy or not canSolve:
             cls._PendingSolve = canSolve

freecad/asm3/solver.py

@@ -349,7 +349,7 @@ def _solve(objs=None,recursive=None,reportFailed=False,
         assemblies.append(obj)
 
     if not assemblies:
-        logger.info('no assembly found')
+        logger.info('no assembly found', frame=1)
         return True
 
     if recursive: