AEDebugging_ Fix tests

SQUASHED: AUTO-COMMIT-src-client-reactive-active-expression-active-expression.js,

Author: Markus-Brand

src/client/reactive/active-expression/active-expression.js

@@ -291,7 +291,7 @@ export class BaseActiveExpression {
    */
   onChange(callback, originalSource) {
     this.callbacks.push(callback);
-    this.logEvent('callbacks changed', 'Added: ' + originalSource ? originalSource.sourceCode : callback);
+    this.logEvent('callbacks changed', 'Added: ' + (originalSource ? originalSource.sourceCode : callback));
     AExprRegistry.updateAExpr(this);
     return this;
   }
@@ -305,7 +305,7 @@ export class BaseActiveExpression {
     const index = this.callbacks.indexOf(callback);
     if (index > -1) {
       this.callbacks.splice(index, 1);
-      this.logEvent('callbacks', 'Removed: ' + originalSource ? originalSource.sourceCode : callback);
+      this.logEvent('callbacks', 'Removed: ' + (originalSource ? originalSource.sourceCode : callback));
       AExprRegistry.updateAExpr(this);
     }
     if (this._shouldDisposeOnLastCallbackDetached && this.callbacks.length === 0) {