Error checking out a working copy that has a symlink loop

[schpet]

Description

if your working copy has a symlink loop, most jj commands stop working, only printing out an error.

Steps to Reproduce the Problem

jj git init loop
cd loop/
jj ci -m "hello"
ln -s uhoh uhoh
jj new @-

Expected Behavior

for the circular symlink to exist in my working copy.

note @martinvonz mentioned in discord:

please file a bug report. we should probably make that a warning instead, but maybe there's something i'm missing

Actual Behavior

an error is raised:

Internal error: Failed to check out commit a0d83e0d1d4f871cce39de77e4b33eed322b925f
Caused by:
1: Failed to validate path /private/tmp/loop/uhoh
2: Too many levels of symbolic links (os error 62)

Specifications

• Platform: darwin
• Version: jj 0.36.0