missing instructions in Node Map generation

I believe that an instruction is missing from step 6.10 of Node Map Generation, namely:

• if node map does not contain an id entry, create one and initialize its value to an empty map

before recursively invoking the algorithm.
Indeed, in step 2 of the invoked algorithm, that entry is assumed to already exist:

Reference the map which is the value of the active graph entry of node map")

(edited wrong markup, which made the suggested sentence potentially harder to understand)

Start with step 6.10 of the Node Map Generation section in the linked JSON-LD 1.1 API specification, then compare it with step 2 of the recursively invoked algorithm. Confirm whether the node map's id entry must be initialized before recursion, update the specification wording accordingly, and verify that the surrounding algorithm steps remain consistent.