PyCall silently rewriting linked (independent) conda environments

I have a conda environment I construct independently of Julia's conda I would like to link PyCall to. This used to work entirely fine. However, now when I define ENV["PYTHON"] and rebuild PyCall, PyCall completely rewrites that environment when linking to it.

首先使用独立构建的 conda 环境重现该问题，设置 ENV["PYTHON"] 并重新构建 PyCall。跟踪重新构建的行为，并验证链接 PyCall 不会改变独立环境。

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