able to change to profile that doesn't exist which results in symlink that breaks

[Ravi]

npmrc
npmrc test1
npmrc test2 - I was able to change to this profile without a error message then is see the below error:
Current .npmrc (/Users/test/.npmrc) is not a symlink. You may want to copy it into /Users/test/.npmrcs.
From then on running npmrc test1 doesn't properly symlink back to .npmrc.
Have to then start from scratch.