[Backport 3.1.2] No cache eviction for changes to development files

Steps:

1. Turned on caching for hst:hosts in console
2. Changed one freemarker file, saved it.
3. Refresh page on site

• Expected: site to refresh with new change
• Actual: Error 404 cannot find styling sheets and page loads content without styling

Site cache eviction does not happen when development files are edited. This is not consistent with editing and publishing in the CMS where one publish will evict the entire site cache.

Workaround: added hst:cacheable to dev-localhost/localhost node in console and turned it off, while keeping hst:hosts caching on.