Codeblocks in list items are erroneously reflowed in KDoc

[JakeWharton]

Input:

/**
 * Hey:
 * - Nullable to non-null type
 *
 *    ```
 *    val o1: String? = someFunction()
 *    val o2: String = o1.unsafeCast<String>()
 *    ```
 */
fun String.sup() = "hey"

Output (0.59):

/**
 * Hey:
 * - Nullable to non-null type
 *
 *   ``` val o1: String? = someFunction() val o2: String = o1.unsafeCast<String>() ```
 */
fun String.sup() = "hey"

Expected:

No change from input.