Odd error message during development:"Internal Warning: route cache overwritten"

[FredKSchott]

What version of astro are you using?

1.1.5

Are you using an SSR adapter? If so, which one?

none

What package manager are you using?

pnpm

What operating system are you using?

mac

Describe the Bug

As I was developing on astro.build, I saw this warning message every time I changed and saved an MDX blog file:

Link to Minimal Reproducible Example

https://github.com/withastro/www-2

Participation

• [X] I am willing to submit a pull request for this issue.