Unicode Characters

** Important, do not do this on a live system **

If unicode characters are pasted into the title field and the image submitted, the user is not able to to make any further changes.
And it is not possible to open any form that displays the title field.
This error is shown: *** Entry Wizard ERROR *** Invalid data found.
Clicking on ‘Manage Items’ on the relevant WebForm triggers the error so it’s not possible to delete the entry.

One of our members had pasted ‘Tane’ in the title field with an accented ‘a’.
This was saved as T?ne in the database. But, the string length was set to ‘5’.

We had to manually change the ‘5’ to a ‘4’

Before change:
{s:8:”field_id”;i:168;s:5:”value”;s:5:”T?ne”;}
After change:
{s:8:”field_id”;i:168;s:5:”value”;s:4:”T?ne”;}

Would it be possible to validate the title field to maybe exclude unicode characters or display an error message.