narrow: prevent removal of ACL-defined excludes

narrow: add test demonstrating bug in acl exclusion enforcement

bundle: do not detect --base argument that match nothing as lack of argument With the previous version of the code, if --base did not match anything, it will be handled as if no --base was provided and will fallback to using discovery with the default path. This has two issues : - The resulting bundle won't match what the user requested, - if not default path is configured, it will crash. We now properly distinct between the two cases and if the --base query does not find any changeset, we will assume that everything under --rev needs to be sent.

bundle: highlight misbehavior when --base does not match any revision See next changeset for fix and details.

generate-churning-bundle: fix script for python3 This script has apparently not run for a long time.

persistent-nodemap: respect the mmap setting when refreshing data After writing updated data, we reload the in-memory data. However, that logic was… wrong. We were doing file read when mmap was requested and when the configuration was requesting to not use mmap… we were using it. This should now be fine.