I have not managed to replicate that exact bug, but naming the Ebon Blot nnsgre rvgure gur cerfhznoyl-erfreirq Rgurknr be Lnxnh, Lnxnh will result in an erroneous "Negotiate" indicator. I have tested rirel bgure Ryrpgbe, nf jryy nf Mbenan, Xbehaqv naq Znmneva and in my test those names worked as expected.
The randomiser does not activate this option - I suspect that when it otherwise would do so, it simply shows the Ebon Blot overlay with "Visit" and "X" as the only options as usual (and correct).