107778 【备份还原4.0.14】系统备份中点击取消，取消系统备份后，之前的系统备份都被删除

backup-daemon/databackupproxy.cpp

@@ -96,6 +96,9 @@ void DataBackupProxy::cancelEx()
  */
 void DataBackupProxy::deleteFailedData()
 {
+    if (m_curUuid.isEmpty())
+        return;
+
     // 1、删除备份目录
     QString destPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid;
     destPath.replace("//", "/");

backup-daemon/systembackupproxy.cpp

@@ -96,6 +96,9 @@ void SystemBackupProxy::cancelEx()
  */
 void SystemBackupProxy::deleteFailedData()
 {
+    if (m_curUuid.isEmpty())
+        return;
+
     // 1、删除备份目录
     QString destPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid;
     destPath.replace("//", "/");

backup-daemon/udiskdatabackupproxy.cpp

@@ -102,6 +102,9 @@ void UDiskDataBackupProxy::cancelEx()
  */
 void UDiskDataBackupProxy::deleteFailedData()
 {
+    if (m_curUuid.isEmpty())
+        return;
+
     // 1、删除备份目录
     QString destPath = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid;
     destPath.replace("//", "/");

backup-daemon/udisksystembackupproxy.cpp

@@ -119,6 +119,9 @@ void UDiskSystemBackupProxy::cancelEx()
  */
 void UDiskSystemBackupProxy::deleteFailedData()
 {
+    if (m_curUuid.isEmpty())
+        return;
+
     // 1、删除备份目录
     QString destPath = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid;
     destPath.replace("//", "/");