withSource method was extending the builder command with generated sources instead of regular sources
diff --git a/kotlin/builder/src/io/bazel/kotlin/builder/BuildCommandBuilder.kt b/kotlin/builder/src/io/bazel/kotlin/builder/BuildCommandBuilder.kt
index 58a46d0..5b4baae 100644
--- a/kotlin/builder/src/io/bazel/kotlin/builder/BuildCommandBuilder.kt
+++ b/kotlin/builder/src/io/bazel/kotlin/builder/BuildCommandBuilder.kt
@@ -146,8 +146,8 @@
     override fun withSources(command: BuilderCommand, sources: Iterator<String>): BuilderCommand =
         command.updateBuilder { builder ->
             sources.partitionSources(
-                { builder.inputsBuilder.addGeneratedKotlinSources(it) },
-                { builder.inputsBuilder.addGeneratedJavaSources(it) })
+                { builder.inputsBuilder.addKotlinSources(it) },
+                { builder.inputsBuilder.addJavaSources(it) })
         }