Avoid fit recalc when setting state has no effect

service/fit.py

@@ -940,21 +940,27 @@ class Fit(object):
             self.recalc(fit)
 
     def toggleModulesState(self, fitID, base, modules, click):
+        changed = False
         proposedState = self.__getProposedState(base, click)
+
         if proposedState != base.state:
+            changed = True
             base.state = proposedState
             for mod in modules:
                 if mod != base:
-                    mod.state = self.__getProposedState(mod, click,
-                                                        proposedState)
+                    p = self.__getProposedState(mod, click, proposedState)
+                    mod.state = p
+                    if p != mod.state:
+                        changed = True
 
-        eos.db.commit()
-        fit = eos.db.getFit(fitID)
+        if changed:
+            eos.db.commit()
+            fit = eos.db.getFit(fitID)
 
-        # As some items may affect state-limiting attributes of the ship, calculate new attributes first
-        self.recalc(fit)
-        # Then, check states of all modules and change where needed. This will recalc if needed
-        self.checkStates(fit, base)
+            # As some items may affect state-limiting attributes of the ship, calculate new attributes first
+            self.recalc(fit)
+            # Then, check states of all modules and change where needed. This will recalc if needed
+            self.checkStates(fit, base)
 
     # Old state : New State
     localMap = {