D358: copytrace: move fb extension to core under flag experimental.fastcopytrace

[pulkit (Pulkit Goyal)]

pulkit abandoned this revision.
pulkit added a comment.


  There is work ongoing on improving copytrace in fb-hgext. I will resend patches with updated copytrace logic once the work is done.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D358

To: pulkit, #hg-reviewers
Cc: quark, stash, mercurial-devel