Merge pull request #132 from TwooTwoo/fix/readFeedback

fix: 멘토 기준 할일 등록시 `readFeedback`이 `ture`로 설정되는 버그 수정

Author: TwooTwoo

src/main/kotlin/goodspace/bllsoneshot/entity/assignment/Task.kt

@@ -72,8 +72,10 @@ class Task(
     fun hasFeedback(): Boolean =
         proofShots.any { it.hasFeedback() }
 
-    fun hasReadAllFeedbacks() =
-        proofShots.all { it.hasReadAllFeedbacks() }
+    fun hasReadAllFeedbacks(): Boolean {
+        if (!hasFeedback()) return false
+        return proofShots.all { it.hasReadAllFeedbacks() }
+    }
 
     fun markFeedbackAsRead() {
         proofShots.forEach { it.markFeedbackAsRead() }