fix: --verbose no longer duplicates build log into root log (#1302)

When --verbose was used, the build logger's propagate flag was set to 1,
causing build output to bubble up to the parent mockbuild logger which
has a root.log FileHandler. This resulted in build.log content being
entirely duplicated in root.log (and installed_packages log as well).

Console output during builds is already handled by direct stdout writes
in logOutput(), so the propagation on the build logger was unnecessary.

Resolves: #1302

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 2 people

mock/py/mock.py

@@ -539,7 +539,6 @@ def setup_logging(config_path, config_opts, options):
         log.handlers[0].setLevel(logging.INFO)
     elif options.verbose == 2:
         log.handlers[0].setLevel(logging.DEBUG)
-        logging.getLogger("mockbuild.Root.build").propagate = 1
         logging.getLogger("mockbuild").propagate = 1
 
     # enable tracing if requested

releng/release-notes-next/verbose-no-duplicate-build-log.bugfix.md

@@ -0,0 +1,2 @@
+The `--verbose` option no longer duplicates the build log output into the root
+log.