I believe there might be other people, not only me, who, when first opened documentation for if() command, saw list of condition operators in “Condition Syntax” section, and wrongfully assumed that they are the only checks that CMake supports. I wonder if it worth adding all documented checks to that list?
I failed to create merge request, but maybe I can post a link to my commit here, in case someone wants to take it.
Thanks. I cherry-picked your commit to create CMake MR 9767.
You’ve correctly pushed the branch to your fork. You should be able to visit your fork’s page on GitLab, click on the “Merge Requests” section on the left, and then see a button to create a new merge request.
Thank you for the prompt reply and picking my commit!
And sorry I probably should’ve been more specific: When I filled out the form to create MR, gitlab told me: “Your merge request has been recognized as spam” (picture attached). Tried rewording my commit message twice with same result. Tried to create an issue with a text similar to first message in this thread - received a similar reply (no picture this time, sorry). Not sure if antispam got triggered by some words in the message or by the age of my few-minutes-old account, but good that you have more ways to communicate! 
