bentatham opened a new pull request, #1852:
URL: https://github.com/apache/maven-resolver/pull/1852

   Fixes `...293.225.2.0-dev for version range null: Comparison method violates 
its general contract!` when there is a modifier on the version (eg when using 
`mvn versions:update-parent`).
   
   When two versions differ in kind at index 0 (e.g. a string-prefixed 
branch-style version versus a numeric release whose first segment is zero), 
comparePadding with a number filter may return 0 even though the versions are 
clearly different. That makes equality non-transitive and breaks TimSort when 
DefaultVersionRangeResolver sorts metadata lists mixing both shapes.
   
   This is the same fix as MRESOLVER-336, which was applied to 2.x but never 
landed on the 1.9.x line that ships with Maven 3.9.x.
   
   Adds two regression tests covering the three-way transitivity violation and 
a representative sort.
   
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