Problem: It is possible (and documented in `:h vim.pack`) that plugin's
`src` uses "insteadOf" Git config. In that case comparing it directly
to repo's `origin` will error.
Solution: Add extra check that lockfile's `src` is not equal to repo's
`origin` when taking Git's "insteadOf" into account.
However, still report the original lockfile's `src` in the
`:checkhealth` output, as it seems to be a clearer indication of what
actually is wrong.
3d37aa3116
