Maybe this script can help you. https://github.com/ada-piggy-bank/pool-utils
I haven’t used it as is, so look through the code, check all lines and see if it’ll do the job for future rotations. (I recommend not running anything you are not familiar with unless it comes from a trusted source)
Edit: you can use some tricks from the script to get your current rotation and check it against the counter file (i guess the counter file is not encoded, don’t have it with me now to check)