Log Message:
py-mercurial: update to 4.6.1.

Mercurial 4.6.1 (2018-06-06)

This is a regularly-scheduled bugfix release that also contains security fixes.

1.1. Security Fixes

Multiple issues found in mpatch.c with a fuzzer:

    OVE-20180430-0001
    OVE-20180430-0002
    OVE-20180430-0004

With the following fixes:

    mpatch: be more careful about parsing binary patch data (SEC)
    mpatch: protect against underflow in mpatch_apply (SEC)
    mpatch: ensure fragment start isn't past the end of orig (SEC)
    mpatch: fix UB in int overflows in gather() (SEC)
    mpatch: fix UB integer overflows in discard() (SEC)
    mpatch: avoid integer overflow in mpatch_decode (SEC)
    mpatch: avoid integer overflow in combine() (SEC)

No exploits are known at the time, however, it is highly recommended that all \ 
users upgrade.

1.2. Bug Fixes

Also included in this release are the following,

    zstandard: pull in bug fixes from upstream 0.9.1 (issue5884)
    bundle2: fix old clients from reading newer format (issue5872)
    bdiff: fix xdiff long/int64 conversion (issue5885)
    push: continue without locking on lock failure other than EEXIST (issue5882)
    lfs: fix crash in command server (issue5902)
    hghave: fix deadlock in test runner
    rebase: fix error when computing obsoletenotrebased (issue5907)
    rebase: prioritize indicating an interrupted rebase over update (issue5838)
    revset: pass in lookup function to matchany() (issue5879)