Daniel Ziegenberg 6cdbcda8fd

MDL-78768 grade: fix import multiple new grade items ...

Prior to this change, when importing grades from .csv (or another
method) and you choose to map the grades to a 'New grade item', you get
the following error message:
```
"Mapping collision detected - two fields maps to the same grade item
new."
```
A workaround existed that required users to import one column at a time,
which was cumbersome.

This change fixes importing multiple new grade items and adds a behat
test.

Co-authored-by: hehe009 <max_kan@hotmail.com>
Signed-off-by: Daniel Ziegenberg <daniel@ziegenberg.at>

2024-05-22 12:21:22 +02:00

..

grade_import_grademax.csv

…

grade_import_grademin.csv

…

grade_import_multiple_mappings.csv

…

grade_import.csv

…