Error when uploading files with rclone via webdav

[Ram042]

Describe the bug
Rclone fails to write files via webdav with error
2024/11/23 22:44:31 ERROR : Attempt 1/3 failed with 1 errors and: read metadata failed: <pre>[Errno 20] Not a directory: b'/test.txt'

Server log

19:43:47.436 10.88.0.1 52024       PFIND /test.txt @*
19:43:47.438 10.88.0.1 52024       httpcli.py:657 <run>: return self.handle_propfind() and self.keepalive
httpcli.py:1428 <handle_propfind>: _, vfs_ls, vfs_virt = vn.ls(
authsrv.py:605 <_ls>: real = list(statdir(self.log, scandir, lstat, abspath, throw))
util.py:2759 <statdir>: with os.scandir(btop) as dh:
[NotADirectoryError] [Errno 20] Not a directory: b'/tmp/test.txt', test.txt

To Reproduce

1. Start server with docker sudo docker run --rm -p 3923:3923 docker.io/copyparty/ac:latest -v /tmp::A
2. Copy file to server rclone copy test.txt test:/ --log-level INFO

Expected behavior
File is written successfully without retrying

Server details
Latest ac container from docker hub

copyparty v1.16.1 "COPYparty" (2024-11-15)
  CPython v3.12.7 on Linux64 6.6.31 [GCC 13.2.1 20240309]
   sqlite 3.45.3*1 | jinja 3.1.4 | pyftpd 1.5.10 | tftp 0.4.0

Client details

rclone --version
rclone v1.60.1-DEV
- os/version: raspbian trixie/sid (64 bit)
- os/kernel: 6.6.31+rpt-rpi-2712 (aarch64)
- os/type: linux
- os/arch: arm64
- go/version: go1.23.2
- go/linking: dynamic
- go/tags: none

Additional context
rclone.conf

[test]
type = webdav
url = http://localhost:3923/
vendor = owncloud

Requests

2024/11/23 22:49:51 DEBUG : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2024/11/23 22:49:51 DEBUG : HTTP REQUEST (req 0x40000d8a00)
2024/11/23 22:49:51 DEBUG : PROPFIND /test.txt HTTP/1.1
Host: localhost:3923
User-Agent: rclone/
Depth: 1
Referer: http://localhost:3923/
Accept-Encoding: gzip

2024/11/23 22:49:51 DEBUG : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2024/11/23 22:49:51 DEBUG : <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
2024/11/23 22:49:51 DEBUG : HTTP RESPONSE (req 0x40000d8a00)
2024/11/23 22:49:51 DEBUG : HTTP/1.1 500 Internal Server Error
Connection: close
Content-Length: 123
Cache-Control: no-store, max-age=0
Content-Type: text/html; charset=utf-8
Date: Sat, 23 Nov 2024 19:49:51 GMT
Vary: Origin, PW, Cookie

<pre>[Errno 20] Not a directory: b'/test.txt'
URL: test.txt

NOTE: filepaths sanitized; see serverlog for correct values
2024/11/23 22:49:51 DEBUG : <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

[9001]

yikes, that's a regression added in v1.16.0. Thanks for the heads-up, i'll add some tests and get this fixed right away!