Prevent accepted group message request from resetting when restored from storage.

app/src/test/java/org/thoughtcrime/securesms/groups/v2/processing/GroupsV2StateProcessorTest.kt

@@ -142,6 +142,8 @@ class GroupsV2StateProcessorTest {
     mockkObject(ProfileAndMessageHelper)
     every { ProfileAndMessageHelper.create(any(), any(), any()) } returns profileAndMessageHelper
 
+    every { recipientTable.isProfileSharing(groupId) } answers { false }
+
     every { groupsV2Operations.forGroup(secretParams) } answers { callOriginal() }
 
     processor = GroupsV2StateProcessor.forGroup(serviceIds, masterKey, secretParams)
@@ -1462,4 +1464,25 @@ class GroupsV2StateProcessorTest {
     verify { groupTable.create(masterKey, result.latestServer!!, null, null) }
     verify(exactly = 0) { recipientTable.rotateStorageId(any()) }
   }
+
+  @Test
+  fun `when group already has profile sharing enabled, then setProfileSharing does not re-derive it from membership`() {
+    val joinedAtRevision = 1
+    val newLocalState = DecryptedGroup(
+      revision = joinedAtRevision,
+      members = listOf(member(otherAci), member(selfAci, joinedAt = joinedAtRevision))
+    )
+    val addedByOtherChange = DecryptedGroupChange(
+      revision = joinedAtRevision,
+      editorServiceIdBytes = otherAci.toByteString()
+    )
+    val groupStateDiff = GroupStateDiff(previousGroupState = null, changedGroupState = newLocalState, change = addedByOtherChange)
+
+    every { recipientTable.isProfileSharing(groupId) } answers { true }
+
+    profileAndMessageHelper.setProfileSharing(groupStateDiff, newLocalState, needsAvatarFetch = true)
+
+    verify { recipientTable.isProfileSharing(groupId) }
+    verify(exactly = 0) { recipientTable.setProfileSharing(any(), any()) }
+  }
 }