Escaping in createNode() changed with PHP 8.1

[sboden]

I'm using RawNodeContext::nodeCreate() to create a bundle that has an entity reference. This worked in Drupal 8/PHP 7. When upgrading to Drupal 9/PHP 8.1 my behats break.

As title of the entity reference to create in the bundle I used "0000000000 \- Enterprise". The actual title of the reference is "0000000000 - Behat enterprise". When I use the title without the "\" I get a "number of bound variables does not match number of tokens" error which I also had in Drupal 8/PHP 7. The difference is that "0000000000 \- Enterprise" now results in a query:


SELECT "base_table"."vid" AS "vid", "base_table"."nid" AS "nid"
FROM
"node" "base_table"
INNER JOIN "node_field_data" "node_field_data" ON "node_field_data"."nid" = "base_table"."nid"
│ WHERE ("node_field_data"."title" LIKE '0000000000 \\\\- Behat enterprise' ESCAPE '\\') AND ("node_field_data"."type" IN ('enterprise'))

4 \'s in the query for the title of the reference instead of the 2 \'s I would expect. The query with the 4 \'s doesn't match anything, when I manually change the query to 2 \'s I get the data I expect. 

Because of PHP 8 something seems to double escape.