OK: I guess that lifting yourself from the cockpit by the side rails is a common method of entering and exiting the airplane. And it looks like cracks have occurred there before. The last post looks like a decent fix to that problem. Personally, I use the rollover structure to slip in and out of the cockpit.
However, looking at the second image I am concerned with several things:
1) There is no underlying angle seen under the cockpit rail as seen on the other side and as plans call for. Thus, the bolt holding the rollover structure is not within edge-distance requirements of proper construction.
2) There is a hole peeking out from under the foot of the roll over structure indicating that a hole was previously drilled in the underlying angle (that I assume is there) and the hole for the current bolt is very close to that hole and, if it goes through the underlying angle, once again, does not comply with edge-distance requirements of construction.
IMHO. The mechanic in me sees things that don't look quite right, like this. If you are happy with how this is, I guess I should be as well. I apologize for being so picky.......