fix: prevent a spurious config change handler from firing

Author: savetheclocktower

lib/config.js

@@ -18,6 +18,7 @@ const Config = {
 
   initialize () {
     if (this.initialized) { return; }
+    this._currentConfig = null;
     this.rescan();
     this.initialized = true;
   },
@@ -29,7 +30,6 @@ const Config = {
     }
     this.subscriptions = new CompositeDisposable();
     this.overrides = {};
-    this._currentConfig = null;
     this.configFile = null;
 
     for (let dir of atom.project.getDirectories()) {
@@ -89,8 +89,10 @@ const Config = {
   triggerConfigChange () {
     let newConfig = this.get();
     if (!configChanged(newConfig, this._currentConfig)) { return; }
-    for (let handler of this.handlers) {
-      handler(newConfig, this._currentConfig || {});
+    if (this._currentConfig) {
+      for (let handler of this.handlers) {
+        handler(newConfig, this._currentConfig || {});
+      }
     }
     this._currentConfig = newConfig;
   },