Using this pattern:

<pattern>%date{dd MMM yyyy;HH:mm:ss.SSS} %-5level %logger{50} - %msg%n</pattern>

In 1.3.0-alpha11 I get:

`20 ene 1970;00:29:43.126 INFO org.example.DatePatternBrokenTest - something`

In 1.3.0-alpha10 I get:

`18 dic 2021;00:19:58.343 INFO org.example.DatePatternBrokenTest - something`

So date pattern is broken, I've been looking to provide a PR but didn't see the relevant change.

Reproducer: https://github.com/cocorossello/logback-datepattern-broken-1.3.0-alpha11