When adding a new reference, there is an option to make it default after saving. If I check the "Make default after save?" box and save, the reference is not added, and I received a bug message. If the box is not checked, the reference is added as usual.
Fredrik Palmkron commented over 6 years ago: show raw@user29 I remove this feature some time ago because I was too lazy to fix it but I've now added a new 'Make default' button after creating/updating a reference.
@Flávia Esteves I remove this feature some time ago because I was too lazy to fix it but I've now added a new 'Make default' button after creating/updating a reference.