windows: ensure mixedfilemodewrapper fd doesn't escape by entering context mgr Otherwise it seems that the special read and write handling would be bypassed.

py3: ensure the proxied Windows fd doesn't escape by entering context manager The purpose of the proxy class is to provide the `name` attribute which contains the file path. But in tests that used a context manager, it still blew up complaining that 'int' doesn't have a 'startswith' function.

test: fix test-http-bad-server with current python 2.7 https://github.com/python/cpython/pull/2825 changed the exception message for empty http status line. Differential Revision: https://phab.mercurial-scm.org/D5412

hgweb: register web.comparisoncontext to the config table This was caught in some server side logging added to debug py3 issues.

Added signature for changeset 1c8c54cf9725

Added tag 4.8.1 for changeset 1c8c54cf9725

rebase: fix path auditing to audit path relative to repo root (issue5818) Before this patch, when rebasing a file called "foo/bar", we would check e.g. if "/foo" (i.e. rooted at the file system root) was a symlink. Differential Revision: https://phab.mercurial-scm.org/D5361

tests: show bad path auditing in in-memory rebase Thanks to Yuya for providing this test case in https://bz.mercurial-scm.org/show_bug.cgi?id=5818. Differential Revision: https://phab.mercurial-scm.org/D5368

tests: add a missing "cd .." to test-rebase-inmemory.t Differential Revision: https://phab.mercurial-scm.org/D5367

rust: fix possible out-of-bounds read through index_get_parents() index_get_parents() is an internal function, which doesn't check if the specified rev is valid. If rustlazyancestors() were instantiated with an invalid stoprev, it would access to invalid memory region. This is NOT a security fix as there's no Python code triggering the bug, but included in this series to not give a notion about the memory issue fixed by the previous patch.