Repeating Events Cut off After 52 Occurrences

I know this has been discussed elsewhere, but I don't know if a temporary solution was ever presented. My issue is the fact that when I import an iCal feed, events that are set to repeat indefinitely get cut off after 52 occurrences. I understand why this is set up this way, as each occurrence is stored separately, but I'm wondering if there is any sort of workaround.

One of the recurring events (weekly) on my site began over a year ago, which means that it no longer appears on my calendar since it reached the 52 repeat limit. I can't find a way to overwrite this. Is there anything I can do temporarily in the code to extend the 52 to 100 or so? I tried editing $max_repeats on line 53 of ParserIcalFeedsParser.inc, but it didn't seem to have an effect. Any help would be great!