fix: don't lie about updated files

Updating involves some low-level git-fu. This can cause unpredicted files to get updated, and the report to the user sometimes is fake.

It'd be great to tell the truth, but for now at least let's just not lie.

Fix #943.
Co-authored-by: Sigurd Spieckermann <[email protected]>

Author: yajo

copier/main.py

@@ -853,7 +853,16 @@ def _apply_update(self):
             with suppress(AttributeError):
                 del self.subproject.last_answers
             # Do a normal update in final destination
-            self.run_copy()
+            current_worker = replace(
+                self,
+                # Files can change due to the historical diff, and those
+                # changes are not detected in this process, so it's better to
+                # say nothing than lie.
+                # TODO
+                quiet=True,
+            )
+            current_worker.run_copy()
+            self.answers = current_worker.answers
             # Render with the same answers in an empty dir to avoid pollution
             new_worker = replace(
                 self,