[bug] fix page lock when editing group or link

Author: zombieFox

src/js/link.js

@@ -1466,6 +1466,7 @@ var link = (function(){
 modal.close();
 }
 });
+pagelock.lock();
 },
 group: function(copyStagedGroup){
 stagedGroup.group=JSON.parse(JSON.stringify(copyStagedGroup.group));
@@ -1506,6 +1507,7 @@ var link = (function(){
 modal.close();
 }
 });
+pagelock.lock();
 }
 };