Steam beta update deleted content of Skins directory

Hello.

The two previous updates both managed to delete my custom theme - I guess this is related to Skin updates within Steam.

swordfischer@HELLRAiSER ~ $ ls .steam/steam/ -l
drwxr-xr-x 2 swordfischer swordfischer    4096 Dec 15 10:31 skins

As you can see, the skins directory has last modification date at the time I started the client, and the update was applied.

swordfischer@HELLRAiSER ~ $ ls .steam/steam/skins -l
-rwxr-xr-x 1 swordfischer swordfischer 15066 Jun 15  2013 skins_readme.txt

This folder used to contain 3 themes, now it contains none.

This happened with the other update a few days ago, however I can't remember which version. But I guess we all can agree that user content should not be deleted unless explicitly told to do so.

Additional Information

Steam Version

Processor Information:
    Vendor:  GenuineIntel
    CPU Family:  0x6
    CPU Model:  0x2a
    CPU Stepping:  0x7
    CPU Type:  0x0
    Speed:  3501 Mhz
    8 logical processors
    4 physical processors
    HyperThreading:  Supported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Unsupported
    SSE41:  Supported
    SSE42:  Supported

Network Information:
    Network Speed:  

Operating System Version:
    "NAME=Gentoo" (64 bit)
    Kernel Name:  Linux
    Kernel Version:  3.10.17-gentoo
    X Server Vendor:  The X.Org Foundation
    X Server Release:  11403000
    X Window Manager:  awesome
    Steam Runtime Version:  steam-runtime-release_2013-10-23

Video Card:
    Driver:  NVIDIA Corporation GeForce GTX 660/PCIe/SSE2

    Driver Version:  4.4.0 NVIDIA 331.20
    OpenGL Version: 4.4
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 60 Hz
    VendorID:  0x10de
    DeviceID:  0x11c0
    Number of Monitors:  1
    Number of Video Cards Not Detected
    Primary Display Resolution:  1920 x 1080
    Desktop Resolution: 1920 x 1269
    Primary Display Size: 23.62" x 13.39"  (27.13" diag)
                                            60.0cm x 34.0cm  (68.9cm diag)
    Primary Bus: PCI Express 16x
    Primary VRAM: 2048 MB
    Supported MSAA Modes:  2x 4x 8x 16x 

Sound card:
    Audio device: Realtek ALC887-VD

Memory:
    RAM:  32132 Mb

Miscellaneous:
    UI Language:  English
    LANG:  en_US.utf8
    Microphone:  Not set
    Total Hard Disk Space Available:  480350 Mb
    Largest Free Hard Disk Block:  155821 Mb

Installed software:

Recent Failure Reports:

ValveSoftware / steam-for-linux

Steam beta update deleted content of Skins directory #3039

Additional Information