Moving tasks is broken

[ben-so]

To move one task from one column to another isn't working anymore since we updated to 1.0.2.

Steps to reproduce the behavior:

1. Click on a task, drag it to another column and drop it
   or
2. Right-click on a task and "Move to Column:" - select a column

Expected behavior

1. I expect the task to be moved to the destination column. But no notification popup is shown nor Email is send. The task is even shown in the destination column. But if I press F5 to refresh, the tasks appears in the source column again.
2. I expect the task to show up in the destination column. A notification popup is shown and an Email is send. But the task is displayed in the source column. After pressing F5 the task is shown in the destination column as expected.

• OS: Windows 10
• Browsers tested: Chrome 87 Firefox 83

[ingelumer]

I can confirm this behavior, tested on two different TaskBoard installations and various browsers (IE/Chrome/Firefox).
Every time moving a task to a different column, visually the task is moved, but after refresh it still remains in old column.
Strange enough I am pretty sure it was working from scratch after initial installation.
Additionally I can report that creating new Tasks still works fine.

[ngamc]

I commented the line $this->apiJson->setSuccess(); under function updateColumn in api/controllers/Columns.php and moving tasks seems get back to normal. Don't know the reasons and hopefully the author have time to take a look at this.