Merge branch 'dev' of https://github.com/artf/grapesjs into dev

src/dom_components/model/ComponentImage.js

@@ -34,12 +34,23 @@ module.exports = Component.extend(
 
         // Add Image Editor button only if the default command exists
         if (cmd.has(cmdName)) {
+          let hasButtonBool = false;
           var tb = this.get('toolbar');
-          tb.push({
-            attributes: { class: 'fa fa-pencil' },
-            command: cmdName
-          });
-          this.set('toolbar', tb);
+
+          for (let i = 0; i < tb.length; i++) {
+            if (tb[i].command === 'image-editor') {
+              hasButtonBool = true;
+              break;
+            }
+          }
+
+          if (!hasButtonBool) {
+            tb.push({
+              attributes: { class: 'fa fa-pencil' },
+              command: cmdName
+            });
+            this.set('toolbar', tb);
+          }
         }
       }
     },