Handle multiple server restarts

Trying to decrease by only taking steps if different.

src/PiPedalModel.cpp

@@ -1922,6 +1922,7 @@ void PiPedalModel::SetJackServerSettings(const JackServerSettings &jackServerSet
     }
 #endif
 
+    bool changed = !jackServerSettings.Equals(this->jackServerSettings);
     this->jackServerSettings = jackServerSettings;
 
     // take a snapshot incase a client unsusbscribes in the notification handler (in which case the mutex won't protect us)
@@ -1938,11 +1939,19 @@ void PiPedalModel::SetJackServerSettings(const JackServerSettings &jackServerSet
     }
 
     FireJackConfigurationChanged(this->jackConfiguration);
-
+    //Only if different. Trying to decrease audio server restarts.
+    if (changed)
+    {
         CancelAudioRetry();
 
         guard.unlock();
         RestartAudio();
+    }
+    else
+    {
+        // Only persistence requested.
+        guard.unlock();
+    }
 
 #endif
 #if JACK_HOST
@@ -1953,7 +1962,9 @@ void PiPedalModel::SetJackServerSettings(const JackServerSettings &jackServerSet
         currentPreset.modified_ = this->hasPresetChanged;
         currentPreset.preset_ = this->pedalboard;
         storage.SaveCurrentPreset(currentPreset);
-
+        //Only if different. Trying to decrease server restarts.
+        if (changed)
+        {
             this->jackConfiguration.SetIsRestarting(true);
             FireJackConfigurationChanged(this->jackConfiguration);
             this->audioHost->UpdateServerConfiguration(
@@ -1993,6 +2004,7 @@ void PiPedalModel::SetJackServerSettings(const JackServerSettings &jackServerSet
                 }
                 });
         }
+    }
 #endif
 }