ceki/logback — comment on commit c0d9b3b41b6cac04daa19d30f7a262ba81e8e319
File: logback-core/src/main/java/ch/qos/logback/core/rolling/SizeAndTimeBasedFNATP.java line 65
By ceki:

Searching for both compressed and non-compressed would probably sufficient to address this situation. Not state would need to be kept.