More precise download_info with legacy cache entries

This should not matter in practice but let's be correct.
Since there is always a cache (the transient or persistent cache),
only the persistent cache matters when deciding if
something is actually cached.

Author: sbidoul

src/pip/_internal/resolution/legacy/resolver.py

@@ -438,7 +438,7 @@ def _populate_link(self, req: InstallRequirement) -> None:
                 # Legacy cache entry that does not have origin.json.
                 # download_info may miss the archive_info.hash field.
                 req.download_info = direct_url_from_link(
-                    req.link, link_is_in_wheel_cache=True
+                    req.link, link_is_in_wheel_cache=cache_entry.persistent
                 )
             req.link = cache_entry.link
 

src/pip/_internal/resolution/resolvelib/candidates.py

@@ -291,7 +291,7 @@ def __init__(
                 # Legacy cache entry that does not have origin.json.
                 # download_info may miss the archive_info.hash field.
                 ireq.download_info = direct_url_from_link(
-                    source_link, link_is_in_wheel_cache=True
+                    source_link, link_is_in_wheel_cache=cache_entry.persistent
                 )
 
         super().__init__(