Bug #34434 Unhandled Exception when Deleting Multiple Objects from Diagram not Catalog

Description:
Workbench crashes when I select multiple objects including constraints and attempt to delete them from the EER Diagram while keeping them in the catalog.

How to repeat:
1) Created an ERR Diagram with several tables linked with foreign key constraints.
2) Select the table figures along with the linkage line figures
3) Right click and click "Delete (#) Select Figures"

The "Delete Foreigh Key" Message box will pop-up saying "Please confirm whether columns used by the foreign key should be deleted too."

4) Select Yes or No

It seems that as the program steps through the different figures and ask to either remove the columns from the tables that connect the foreign keys or delete the table figures from the catalog while removing them from the diagram, it crashes.

I can replicate this crash every time.

Suggested fix:
Just a guess, but it might have something to do with the order items are removed.

Thank you for the bug report.

fixed in 5.0.13 SVN Rev 2574

Thank you for your bug report. This issue has been addressed in the documentation. The updated documentation will appear on our website shortly, and will be included in the next release of the relevant products.
Added to the changelog.