系统版本：X86
设备环境：（pve虚拟机下的飞牛OS - 1.1.3107 ）
BUG现象：（记不清是哪个版本更新后就无法正常使用了，目前摄像头FTP录像备份功能无法在片段录制完毕后进行重命名，使用winscp手动连接进行复现，可以新建ftp文件，删除文件，但无法重命名）
出现频率：（必现）
联系方式：（fnos228群-南城36）
. 2026-06-30 11:04:13.672 Renaming file "test.dav_" to "test.dav".
. 2026-06-30 11:04:13.672 Listing file "/demo-back/test/test.dav".
> 2026-06-30 11:04:13.672 MLST /demo-back/test/test.dav
< 2026-06-30 11:04:13.673 550 /demo-back/test/test.dav can't be listed
. 2026-06-30 11:04:13.673 无法获取文件信息
> 2026-06-30 11:04:13.673 RNFR /demo-back/test/test.dav_
< 2026-06-30 11:04:13.674 350 File exists, ready for destination name.
> 2026-06-30 11:04:13.674 RNTO /demo-back/test/test.dav
< 2026-06-30 11:04:13.674 550 rename: No such file or directory.
. 2026-06-30 11:04:13.675 Asking user:
. 2026-06-30 11:04:13.675 将文件'test.dav_'改名为'test.dav'时出错。 ("rename: No such file or directory.")
. 2026-06-30 11:04:18.141 [Background 2] Sending dummy command to keep session alive.
> 2026-06-30 11:04:18.141 [Background 2] PWD
< 2026-06-30 11:04:18.141 [Background 2] 257 "/demo-back/test" is current directory.
. 2026-06-30 11:04:22.255 Answer: Skip
