Fix some extra indentation in code block that is inside list (#2233)

(cherry picked from commit bf8e7dc)

Author: vmishenev

plugins/base/src/main/kotlin/parsers/MarkdownParser.kt

@@ -327,6 +327,7 @@ open class MarkdownParser(
                 .children
                 .dropWhile { it.type != MarkdownTokenTypes.CODE_FENCE_CONTENT }
                 .dropLastWhile { it.type != MarkdownTokenTypes.CODE_FENCE_CONTENT }
+                .filter { it.type != MarkdownTokenTypes.WHITE_SPACE }
                 .map {
                     if (it.type == MarkdownTokenTypes.EOL)
                         LeafASTNode(MarkdownTokenTypes.HARD_LINE_BREAK, 0, 0)

plugins/base/src/test/kotlin/model/CommentTest.kt

@@ -2,9 +2,8 @@ package model
 
 import org.jetbrains.dokka.model.DClass
 import org.jetbrains.dokka.model.DProperty
-import org.jetbrains.dokka.model.doc.CodeBlock
-import org.jetbrains.dokka.model.doc.CustomTagWrapper
-import org.jetbrains.dokka.model.doc.Text
+import org.jetbrains.dokka.model.doc.*
+import org.jetbrains.dokka.model.doc.Br
 import org.junit.jupiter.api.Test
 import utils.*
 
@@ -51,6 +50,32 @@ class CommentTest : AbstractModelTest("/src/main/kotlin/comment/Test.kt", "comme
         }
     }
 
+    @Test
+    fun codeBlockWithIndentationComment() {
+        inlineModelTest(
+            """
+                |/**
+                | * 1.
+                | *    ```
+                | *    line 1
+                | *    line 2
+                | *    ```
+                | */
+                |val prop1 = ""
+            """
+        ) {
+            with((this / "comment" / "prop1").cast<DProperty>()) {
+                name equals "prop1"
+                with(this.docs().firstOrNull()?.children?.firstOrNull()?.assertNotNull("Code")) {
+                    val codeBlockChildren = ((this?.children?.firstOrNull() as? Li)?.children?.firstOrNull() as? CodeBlock)?.children
+                    (codeBlockChildren?.get(0) as? Text)?.body equals " line 1"
+                    (codeBlockChildren?.get(1) as? Br) notNull "Br"
+                    (codeBlockChildren?.get(2) as? Text)?.body equals " line 2"
+                }
+            }
+        }
+    }
+
     @Test
     fun emptyDoc() {
         inlineModelTest(