### Bug Description If you have a `spread/.extension` file, `git describe --dirty` in an override-build will always show the repo as dirty because `spread.yaml` and `spread/.extension` don't get copied into the build directory. This is causing Charmcraft 4.0.0 to appear to be dirty. ### To Reproduce Check out the 4.0.0 tag of Charmcraft and pack it ### Environment My machine, launchpad, etc... ### snapcraft.yaml ```yaml ... ``` ### Relevant log output ```shell n/a ``` ### Additional context _No response_