fix: empty messages in open groups now correct properly

app/src/main/java/org/thoughtcrime/securesms/database/Storage.kt

@@ -182,8 +182,7 @@ class Storage(context: Context, helper: SQLCipherOpenHelper) : Database(context,
 
     override fun resumeMessageSendJobIfNeeded(messageSendJobID: String) {
         val job = DatabaseFactory.getSessionJobDatabase(context).getMessageSendJob(messageSendJobID) ?: return
-        job.delegate = JobQueue.shared
-        job.execute()
+        JobQueue.shared.add(job)
     }
 
     override fun isJobCanceled(job: Job): Boolean {

libsession/src/main/java/org/session/libsession/messaging/jobs/AttachmentDownloadJob.kt

@@ -34,8 +34,8 @@ class AttachmentDownloadJob(val attachmentID: Long, val databaseMessageID: Long)
     }
 
     override fun execute() {
+        try {
             val messageDataProvider = MessagingConfiguration.shared.messageDataProvider
-        messageDataProvider.getDatabaseAttachment(attachmentID)
             val attachment = messageDataProvider.getDatabaseAttachment(attachmentID) ?: return handleFailure(Error.NoAttachment)
             messageDataProvider.setAttachmentState(AttachmentState.STARTED, attachmentID, this.databaseMessageID)
             val tempFile = createTempFile()
@@ -69,6 +69,9 @@ class AttachmentDownloadJob(val attachmentID: Long, val databaseMessageID: Long)
 
             tempFile.delete()
             handleSuccess()
+        } catch (e: Exception) {
+            handleFailure(e)
+        }
     }
 
     private fun handleSuccess() {

libsession/src/main/java/org/session/libsession/messaging/opengroups/OpenGroupMessage.kt

@@ -42,7 +42,8 @@ data class OpenGroupMessage(
             }()
             // Message
             val displayname = storage.getUserDisplayName() ?: "Anonymous"
-            val body = message.text ?: message.sentTimestamp.toString() // The back-end doesn't accept messages without a body so we use this as a workaround
+            val text = message.text
+            val body = if (text.isNullOrEmpty()) message.sentTimestamp.toString() else text // The back-end doesn't accept messages without a body so we use this as a workaround
             val result = OpenGroupMessage(null, userPublicKey, displayname, body, message.sentTimestamp!!, OpenGroupAPI.openGroupMessageType, quote, mutableListOf(), null, null, 0)
             // Link preview
             val linkPreview = message.linkPreview