Did you ever get this answered? If not, just look at Deadpool #3 in 1993. It's not labeled as Deadpool -The Circle Chase.
Vanessa (Copycat) is in 3 full pages of Deadpool CC 2 in her true form - with even a reference to XF 15 (as Domino), AND a conversation with her mother. Clearly qualifies as a "full" appearance, even if you consider X-Force 19 a cameo (which I don't). Naked in bed rulz as far as I'm concerned.
1st Copycat name is on Circle Chase 3 - First Copycat appearance?
She does appear as Vanessa Carlysle in X-Force 19-24 & Circle Chase #2
Its all pretty irrelevant at this point since we dont know if she will even be in the movie, but the casting role description seems pretty convincing
She doesn't appear as Vanessa in XF 20. I haven't checked the others, but I doubt it.
Why are you so hung?
Divad!! Not in here!