give release flag priority when choosing version number

build number property is actually present even for release build and i don't know a good way to disable it for specific build chain.

(cherry picked from commit 7eac8e6)

build.gradle.kts

@@ -76,14 +76,14 @@ group = "org.jetbrains.kotlinx"
 fun detectVersion(): String {
     val buildNumber = rootProject.findProperty("build.number") as String?
     val versionProp = property("version") as String
-    return if (buildNumber != null) {
+    return if (hasProperty("release")) {
+        versionProp
+    } else if (buildNumber != null) {
         if (rootProject.findProperty("build.number.detection") == "true") {
             "$versionProp-dev-$buildNumber"
         } else {
             error("use build.number + build.number.detection = true or release build")
         }
-    } else if (hasProperty("release")) {
-        versionProp
     } else {
         "$versionProp-dev"
     }