Cloning outdated version of stable-diffusion-webui

[cassidea]

Tested with universonic/stable-diffusion-webui:full sha256:b4c42f37f8272c981ff4e25d9e6b9428532200e605a2a00df4a3c74283460f48

• start container
• export container into tar file
• untar file into directory
• go to directory/app/stable-diffusion-webui
• execute git log -> commit 5ef669de080814067961f28357256e8fe27544f4 (HEAD -> master, tag: v1.6.0, origin/release_candidate, origin/master, origin/HEAD)

Current release is 1.7.0.
Dockerfile does not specificy the tag 1.6.0 but instead just clones the stable-diffusion-webui-repo. So I assume it should be using master.

This leads to container not starting because of issue 13236.