Description:
Libreoffice Version 6.1.3.1 

Message received : crashreport.libreoffice.org/stats/crash_details/279932fe-ed90-4352-9b51-b1b10f537c0a

A form is created based on a table. At a second time a record is added to the table (name, Charvar). When trying to add to the already created form the new field, for data input, the database crashes. The selected field in the table is highlighted but the cursor on the screen remains the same and there is no design window nor drafting tool appearing. After 7 to 10 seconds, the database crashes. A message appears as mentioned and some second later another one asking whether to start in safe mode the complete Base. 
When doing that, there is now way to re-open the data base in normal form.
I need to enter task manager and delete manually the running in the background applications of Libreoffice  

Steps to Reproduce:
1. Create a table
2. Create a form with all table fields
3. Add a new field in the table 
4. try to add the field in the existing form. This cannot be done and the base crashes


Actual Results:
1. Create a table
2. Create a form with all table fields
3. Add a new field in the table 
4. try to add the field in the existing form. This cannot be done and the base crashes

Expected Results:
The base crashes.



Reproducible: Always


User Profile Reset: Yes



Additional Info:
The new addition to the form should be possible.