Bancontact does not seem to need specific configuration.
This simple plugin seems to work.
stijn.blomme → changed the visibility of the branch 8.x-1.x to hidden.
stijn.blomme → created an issue.
stijn.blomme → changed the visibility of the branch 3185539-add-a-delete to active.
stijn.blomme → changed the visibility of the branch 3185539-add-a-delete to hidden.
I have altered the code from the above core issue and added it to the multivalue form element.
Please test
stijn.blomme → made their first commit to this issue’s fork.
Re applied patch from #6 against the 2.x branch in MR51
stijn.blomme → created an issue.
Woops, this seems to be fixed in the newest version of the module.
stijn.blomme → created an issue.
Combined the patches from #5 and #9 + updated the code for Drupal 9
stijn.blomme → created an issue.