Really strange and specific issue here... thought it might be downstream to wp-graphql-woocommerce and wp-grapql/wp-graphql-woocommerce#491, but it's present even without the downstream plugin enabled.

Steps to replicate:

1. Fresh wordpress 5.7.1 and woocommerce 5.2.2 install with wp-graphql 1.3.8, this triggers some pages to be automatically created, such as /shop, /cart, /checkout etc...

2. Try to query all content nodes, confirming that the shop page with id of cG9zdDo0NA== and URI of /shop/ shows up.:

3. Try to query contentNode by URI of /shop/ (no wp-graphql-woocommerce enabled):

4. Try to query contentNode by ID of `` (no wp-graphql-woocommerce enabled):

5. Turn woocommerce off, forcing all the default included woocommerce pages to disappear, recreating a "shop" page, and then querying it doesn't seem to do anything. Seems that something has been altered in the database maybe? The query looks identical to step 3, where the SQL trace doesn't seem to even be looking for a content node.

Environment

wp-graphql 1.3.8
wordpress 5.7.1
woocommerce 5.2.2