Had a surprise last night:
I was running on two different objects, first a short one, later a longer one. I usually have 'refocus every X' active, with something like 80 minutes. The first run was only a bit longer than that, so I had deactivated the box after I had done the AF run.
After the first sequence had finished, the next target was only 15 minutes before meridian. So I ran an autofocus during that time on a close-by area that was already on the flipped side and waited for the target to cross meridian.
That was going to be a sequence for the rest of the night, so I reactivated the check box. But I did this after I had run the AF. This seems to not set the mark that an AF had been run. Because, when I started the sequence, I got the messageand it started another AF run
Those 9,724 seconds referred to an AF run I had done in the very beginning of the night, before I had deactivated the timer based refocus. Both the AF run before the short sequence and the one a few minutes before were ignored
I think the timer reference should be set to zero after any AF run, not only if the timer box is checked

Edit: Sorry, forgot to mention, this is (almost) latest git version (kstars-3.5.0-1342_ge6a69db89)