make sure all controls also remove any additions

tiny_mce/blockquote/plugin.js

@@ -6,7 +6,7 @@ tinymce.PluginManager.add('plugin_edu.msu.anr.tinymce_blockquote', function(edit
         selectedNode = editor.selection.getNode();
         var title = 'Add BlockQuote';
         var value = 'Place BlockQuote Here';
-        var citation = 'Place Citation Here';
+        var citation = '';
         switch (selectedNode.tagName){
           case 'BODY':
             selectedNode = selectedNode.firstChild;
@@ -50,16 +50,16 @@ tinymce.PluginManager.add('plugin_edu.msu.anr.tinymce_blockquote', function(edit
                 {
                     type: 'textbox',
                     name: 'citationtext',
-                    label: 'Citation',
+                    label: 'Citation (optional)',
                     value: citation
                 }
             ],
             onsubmit: function(e) {
                 let quotetext = e.data.quotetext;
                 let citationtext = e.data.citationtext;
-                if (quotetext.trim() !== 'Place BlockQuote Here' && citationtext.trim() !== 'Place Citation Here') {
+                if (quotetext.trim() !== '' && citationtext.trim() !== '') {
                     insertQuote(quotetext, citationtext);
-                } else if(quotetext.trim() !== 'Place BlockQuote Here'){
+                } else if(quotetext.trim() !== ''){
                     insertQuote(quotetext, false);
                 }
             }