I can confirm this.

System: Arch Linux
Kernel: 6.0.9-arch1-1
File browser: nautilus 43.1-1

Someone else also mentioned this problem on AUR (Arch Linux User Repository) as well: https://aur.archlinux.org/packages/davfs2#comment-888885

Since the update to 1.7.0 my davfs-mount crashes whenever I access it with dolphin file browser. Dolphin is still able to load the directory-content but after that I can't access any files or subdirectories after that.

Steps to reproduce
1. Mount a webdav folder with davfs-fuse
2. Access the folder with dolphin file manager
3. Try to open any file or subdirectory.

After the crash the terminal shows "transport endpoint not connected", dmesg reports a segfault:

[22463.946668] mount.davfs[28726]: segfault at 0 ip 00007f70d9b1176c sp 00007fffda724100 error 4 in libneon.so.27.5.4[7f70d9b0d000+16000]
[22463.946687] Code: 1e fa 41 57 41 56 41 55 41 54 55 89 f5 83 e5 01 53 48 89 fb f7 dd 66 81 e5 83 73 89 e8 48 83 ec 08 80 cc 40 83 e6 02 0f 45 e8 <0f> b6 07 84 c0 0f 84 d1 00 00 00 48 89 fa 45 31 e4 4c 8d 2d fc 3b
[22463.946756] audit: type=1701 audit(1668002619.496:2042): auid=1000 uid=1000 gid=90 ses=3 subj=unconfined pid=28726 comm="mount.davfs" exe="/usr/bin/mount.davfs" sig=11 res=1

I tried it with an completely blank folder so there is no strange file in it and it crashes nonetheless. This doesn't happen when accessing the mount with an alternative file manager like "Files".

My System
Linux version 5.15.76-1-MANJARO (builduser@fv-az214-469) (gcc (GCC) 12.2.0, GNU ld (GNU Binutils) 2.39.0) #1 SMP PREEMPT Sat Oct 29 14:22:16 UTC 2022
Dolphin 22.08.2
Operating System: Manjaro Linux
KDE Plasma Version: 5.26.2
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 5.15.76-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-6700 CPU @ 3.40GHz
Memory: 62,7 GiB of RAM
Graphics Processor: NVIDIA GeForce GT 710/PCIe/SSE2

Please let me know what additional info I can provide to help you track down this bug.