Jit.gl.node rendering question

Hi guys,

i have a very simple question, but i dont understand what i m doing wrong. I think it has to be with gl.node / word.

In this very basic example bellow (which is actually based pon something i took from forum, i think it was a one of Rob's post, a patch that simplifies the vertices and keep only unique coordinates), i dont understand why however the gridshape 'blabla' (calculated on 'bla') is supposed to be rendered to a specific node (node "test"), it doesnt seem to belong to it. If i enable/disable that node, this gridshape is still displayed in the word context. The mesh blablabla, belongs to the same node, and it is displayed accordingly, as expected. I tried to figure out different things.. blend, depth, layer etc. I miss something, and need to understand what's going on here,

Sorry if it looks pretty basic. Any help would be super nice .

the patch :