Missing archive files when using SizeAndTimeBasedRollingPolicy. For example:

riskop@riskop-ESPRIMO-P556:~/git/slf4j_logback_SizeAndTimeBasedRollingPolicy_problem$ ls -l
total 696
rw-rw-r- 1 riskop riskop 64250 dec 15 10:55 log_105505_archive_105505.0.txt
rw-rw-r- 1 riskop riskop 130688 dec 15 10:55 log_105505_archive_105505.2.txt
rw-rw-r- 1 riskop riskop 187864 dec 15 10:55 log_105505_archive_105505.4.txt
rw-rw-r- 1 riskop riskop 74533 dec 15 10:55 log_105505_archive_105506.0.txt
rw-rw-r- 1 riskop riskop 236872 dec 15 10:55 log_105505_current.txt
rw-rw-r- 1 riskop riskop 1257 dec 15 10:53 pom.xml
drwxrwxr-x 3 riskop riskop 4096 dec 15 10:11 src
drwxrwxr-x 6 riskop riskop 4096 dec 15 10:55 target

log_archive_105505.1.txt is missing!

Demo is here: https://github.com/riskop/slf4j_logback_SizeAndTimeBasedRollingPolicy_problem