yes but i never really developed it!! ok we all know i'm never gonna finish that comic script i'll just tell u guys -- in said script, after leia and anakin free Padme, they find out Luke was taken somewhere else which, after a family recon mission, they find is FORTRESS GODDAMN INQUISITORIUS! (which they assume is bc luke tried to use the force to stop the initial arrest, big mistake huge)
anyway all this to say cal's involvement was a tiny-mentioned cameo to explain why anakin knew how to infiltrate nur (the exact line i wrote in the never-finished-script was "we met this jedi survivor a few years back" + comments abt said survivor inflitrating nur 10 years ago yes it was that unsubtle) -- the idea was they had run into one another on a short mission in the past and then gone their separate ways!