Conditional Fields not Showing up on Select Fields with option 'All these values (AND)...'

I don't know enough about this to review, but the status should be needs review, not patch to be ported (that's used for porting a patch from one major version to another, like say from Drupal 8 to Drupal 7).

Adding the missing test group.

There is a related ticket #2873350: Warning: Invalid argument supplied for foreach() in Drupal\conditional_fields\Plugin\conditional_fields\handler\Select->statesHandler to address bugs when using other options.

Re-rolled the patch in #7 and resolved conflicts in OptionsButton.php and conditional_fields.api.inc.

Patch no longer applies to HEAD so it needs a reroll (assuming it's still an issue). Also, there are coding standards problems:

+++ b/conditional_fields.api.inc
@@ -424,11 +424,13 @@ function conditional_fields_evaluate_dependencies($dependent, $form, $form_state
+    if(is_array($dependent['field_parents']) && count($dependent['field_parents']) > 0) {

There must be a space after "if" here and in other stanzas.

+++ b/conditional_fields.api.inc
@@ -672,7 +678,9 @@ function conditional_fields_evaluate_dependency($context, $values, $options) {
+    if(!empty($values_array) && end($values_array) == "")
+      array_pop($values_array);

Anything inside of an "if" must be surrounded by squiggly braces, here and in other stanzas.

+++ b/src/Plugin/conditional_fields/handler/DefaultStateHandler.php
@@ -47,7 +49,9 @@ class DefaultStateHandler extends ConditionalFieldsHandlerBase {
+        $values_array = preg_split('/\R/', $options['values']);
+        if(!empty($values_array) && end($values_array) == "")
+          array_pop($values_array);

I'm seeing this stanza duplicated in several places. It should be moved to its own method to prevent such code duplication.

`

Downgrading priority as other features work. "Critical" means that the module is completely unusable.

Is this issue still relevant for 4.x dev (Drupal 10)? Drupal 8/9 EOL. So: Would like to collect some thoughts/reports here to know how to go on.