Fix version.isSnapshot

which incorrectly identifies versions with hashes as snapshots, for example:
https://index.scala-lang.org/guardian/redirect-resolver/artifacts/redirect-resolver/0.0.38-PREVIEW.try-out-tool-versions-support.2024-04-26T1649.b33d9ccd

Author: jonathonherbert

modules/core/src/main/scala/org/scalasteward/core/data/Version.scala

@@ -99,10 +99,9 @@ final case class Version(value: String) {
       case _                          => false
     }
 
-  private def isSnapshot: Boolean =
+  def isSnapshot: Boolean =
     components.exists {
       case a: Version.Component.Alpha => a.isSnapshotIdent
-      case _: Version.Component.Hash  => true
       case _                          => false
     }
 

modules/core/src/test/scala/org/scalasteward/core/data/VersionTest.scala

@@ -267,8 +267,6 @@ class VersionTest extends DisciplineSuite {
         List("0.21.7+81-a0ff7dd-SNAPSHOT", "0.22.0+99-a0087dd-SNAPSHOT"),
         Some("0.22.0+99-a0087dd-SNAPSHOT")
       ),
-      ("0.1.1", List("0.2.1-485fdf3b"), None),
-      ("0.1.1-RC1", List("0.2.1-485fdf3b"), None),
       ("0.1.1-ALPHA", List("0.2.1-SNAPSHOT"), None),
       ("0.21.5", List("0.21.6+75-6ad94f6f-SNAPSHOT"), None),
       ("0.21.6", List("0.21.6+75-6ad94f6f-SNAPSHOT"), None),
@@ -282,14 +280,13 @@ class VersionTest extends DisciplineSuite {
       ("0.1.1", List("0.1.2"), Some("0.1.2")),
       ("0.1.1-RC1", List("0.1.2"), Some("0.1.2")),
       ("0.1.1-ALPHA", List("0.1.2"), Some("0.1.2")),
-      ("0.1.1", List("0.1.2-FEAT"), Some("0.1.2-FEAT")),
-      ("0.1.1", List("0.1.2-FEAT+3dfde9d7"), None)
+      ("0.1.1", List("0.1.2-FEAT"), Some("0.1.2-FEAT"))
     )
 
     val rnd = new Random()
     nextVersions.foreach { case (current, versions, result) =>
       val obtained = Version(current).selectNext(rnd.shuffle(versions).map(Version.apply), true)
-      assertEquals(obtained, result.map(Version.apply))
+      assertEquals(obtained, result.map(Version.apply), s"For current release $current")
     }
   }
 
@@ -306,6 +303,12 @@ class VersionTest extends DisciplineSuite {
     assertEquals(Component.render(Component.Empty :: Component.parse(original)), original)
   }
 
+  test("Stable preview releases should not be identified as snapshots") {
+    val previewVersion =
+      Version("0.0.37-PREVIEW.try-out-verify-artifact-hashes.2024-04-25T1652.c7fa7c2b")
+    assertEquals(previewVersion.isSnapshot, false)
+  }
+
   def checkPairwise(versions: List[String]): Unit = {
     val pairs = versions.tails.flatMap {
       case h :: t => t.map(v => (Version(h), Version(v)))