Bug #49364 Unhandled exception trying to apply ALTER TABLE

Description:
WB gets unhandled exception when trying to add a new column.  New column was VARCHAR(45), no boxes checked.  Clicking apply brings up exception message instead of review/confirmation page.

Attaching JIT info

How to repeat:
Unsure, appears frequently, and once it does, it repeats each time I try to apply the changes on that table, but I cannot repeat it by trying to execute the same exact change after a fresh restart of WB.

Suggested fix:
No more exception.

Unhandled exception details

Attachment: wb exception.txt (text/plain), 7.49 KiB.

Since this problem cannot be reproduced reliably, I added an extra check for the image path in the wizard, which seems to be the core of the problem, according to the JIT call stack dump.

problem not repeatable anymore in current build. fix will be included in 5.2.12

An entry has been added to the 5.2.12 changelog:

MySQL Workbench generated an unhandled exception when trying to add a new column using the Alter Table facility in the SQL Editor. After the VARCHAR(45) column was added, without selecting any column checkboxes, the exception occurred when the Apply button was clicked.