1) edit an item
3) Add a new [anything] policy
4) Save the form without specifying anything in "Select the action:" (both radio buttons are unchecked by default)
Expected result (as in 1.8.x):
"* No action selected" message is displayed, form is left open
Actual result (in 3.x and 4.x):
The following stacktrace is thrown:
DS-895, https://github.com/DSpace/DSpace/pull/43 ).