Issue #3104980 by danflanagan8, acbramley: layout_builder_system_breadcrumb_alter doesn't check for a null route object
(cherry picked from commit ef493a71)
6 merge requests!10011Issue #3200534 by quietone, longwave, Kristen Pol: Use dataprovider for...,!2571Issue #3000717: Missing mapping for "nodereference_url" widget,!2521Issue #3185775: Place Views preview on the side on large monitors,!1479Issue #3250298: Return empty string "" with JSON Serializer instead of FALSE,!1478Issue #3250298: Return empty string "" with JSON Serializer instead of FALSE,!1203Issue #3236191 Wrong group exposed form widgets and multiple selection error.
