PS. Last runshfunc() uses this file:

https://github.com/psprint/zcommodore/blob/master/__zcmdr-process-buffer

I've added debug marks to this file – attached is diff where I've
added them. The resulted debug-prints file contains also the text
processed, with the  ^A, ^B, etc. – this is what patcompile() is feed
with. Mark 8 is the last one generated before core, and points to this
lines as the source of core-triggering patcompile():

    # Remove the word
    MATCH=""
    buf="${buf#(#m)$word}"


Best regards,
Sebastian Gniazdowski