If the user tries to delete the movie component of a live photo, redownload this

Signed-off-by: Claudio Cambra <claudio.cambra@nextcloud.com>

src/libsync/discovery.cpp

@@ -1122,6 +1122,12 @@ void ProcessDirectoryJob::processFileAnalyzeLocalInfo(
                 qCWarning(lcDisco) << "Failed to delete a file record from the local DB" << path._original;
             }
             return;
+        } else if (serverEntry.isLivePhoto && QMimeDatabase().mimeTypeForFile(item->_file).inherits(QStringLiteral("video/quicktime"))) {
+            // This is a live photo's video file; the server won't allow deletion of this file
+            // so we need to *not* propagate the .mov deletion to the server and redownload the file
+            qCInfo(lcDisco) << "Live photo video file deletion detected, redownloading" << item->_file;
+            item->_direction = SyncFileItem::Down;
+            item->_instruction = CSYNC_INSTRUCTION_SYNC;
         } else if (!serverModified) {
             // Removed locally: also remove on the server.
             if (!dbEntry._serverHasIgnoredFiles) {