Wow! Did the USSR have a mole at Republic?
...No more than they probably did at GE. These images popped up around the same time Mark Wade posted the first pages regarding the GE Modular Apollo proposal that, difference in shapes aside, was functionally identical to the Soyuz basic design, and all of a sudden there was a flurry of discussions - some of which deteriorated into ~CT/Stuff4/Guthball "wanking nutjob troll" threads very quickly - as to whether or not Sergei Pavlovich's design team were being fed documents swiped from GE, Republic, Grumman and North American by the KGB. IIRC, Mark, Henry Spencer, Jim Oberg and several of the other regulars - Charles Vick may have been involved from the outside as well - started connecting the dots and ruled out the Soyuz being a GE swipe, but the Republic LM and the Soviet LK designs came about as being a bit too close for comfort. Especially when those post-LK designs started leaking out where it was *very* obvious that Mishin's post-Korolev team had outright swiped Grumman's design for the LM lander legs, most likely by just walking up to the one of the many mockups being shown off after A11, whipping out a cloth tape measure, and copying down the numbers without anyone being the least bit suspicious.
"Da. Ve vork vor Revell. Ve vant to make better model kit of Lunar Module than Monogram. So ve take measurements, nyet?"