components/modal: Fixed open event firing repeatedly.

marko/components/modal/component.js

@@ -1,10 +1,12 @@
 module.exports = class {
   onCreate() {
     this.mounted = false
+    this.opened = false
   }
 
   closeModal() {
     this.emit("close")
+    this.opened = false
 
     if (this.mounted) {
       window.removeEventListener("keydown", this.onPress)
@@ -17,8 +19,9 @@ module.exports = class {
     }
 
     if (input) {
-      if (input.enabled && (!this.input || !this.input.enabled)) {
+      if (input.enabled && !this.opened) {
         this.emit("open")
+        this.opened = true
       }
 
       if (input.closable) {