Describe the Bug

When editing an exsting table, if I modify the range of some entry in the middle to be invalid and then try to apply it, I will get an error telling me about the problem and allowing me to correct it. But if I then Cancel, the table will contain only those entries higher up than the error, losing everything else.

To Reproduce

1. Add a new table named Error test. Give it six entries with the ranges set to 1, 2, 3, 4, 5, 6, respectively.
2. Edit the table. Modify the 3 range to 3-four and click Accept.
3. See the error dialog saying Table "Error test" contains bad range "3-four" on row 2. C this dialog.
4. In the Edit Table dialog, press the Cancel button.
5. Edit the table again. See that only the 1 and 2 entries still exist.

Expected Behaviour

A table should not be modified when the Edit Table dialog is closed by the Cancel button. It should not be possible to commit partial results whether using the Accept or Cancel buttons.

Screenshots

Original table:

Modified, with error:

After cancelling and reopening:

MapTool Info

1.18.5

Desktop

Linux Mint 22.2

Additional Context

No response