Merge remote-tracking branch 'upstream/stable'
- upstream/stable: (maint) Confine enc_provides_node_when_store_configs_enabled to debian (PUP-2943) Update acceptance tests (PUP-2943) Clean ignore-changes uninstall logic (PUP-2943) Uninstall/upgrade ignore changes spec (PUP-2943) Add PMT --ignore-changes