improve subscription handling and cleanups

Author: infinitnet

rdo.js

@@ -221,6 +221,10 @@ const ImportantTermsComponent = compose([
 
     useEffect(() => {
     return () => {
+        if (editorSubscription) {
+            editorSubscription();
+            editorSubscription = null;
+        }
         debouncedDisplayRelevantDetails.cancel();
     }
 }, []);
@@ -316,4 +320,21 @@ const handleEditorChange = () => {
 
 const debouncedHandleEditorChange = debounce(handleEditorChange, 3000);
 
-subscribe(debouncedHandleEditorChange);
+let editorSubscription = null;
+
+const subscribeEditorChange = () => {
+    if (editorSubscription) {
+        editorSubscription();
+        editorSubscription = null;
+    }
+
+  editorSubscription = subscribe(debouncedHandleEditorChange);
+};
+
+const clearGlobalVariables = () => {
+    globalHighlightingState = false;
+    lastComputedContent = '';
+    lastComputedTerms = '';
+};
+
+subscribeEditorChange();

relevant-density-optimizer.php

@@ -6,14 +6,14 @@
  * Author URI: https://infinitnet.io/
  * Plugin URI: https://infinitnet.io/relevant-density-optimizer/
  * Update URI: https://github.com/infinitnet/relevant-density-optimizer
- * Version: 1.6.3
+ * Version: 1.6.4
  * License: GPLv3
  * Text Domain: relevant-density-optimizer
  */
 
 namespace Infinitnet\RDO;
 
-define('RDO_VERSION', '1.6.3');
+define('RDO_VERSION', '1.6.4');
 
 function rdo_enqueue_block_editor_assets() {
     if (!wp_script_is('rdo-plugin-js', 'enqueued')) {