#chg-compatible

  $ configure mutation-norecord
  $ setconfig treemanifest.flatcompat=False
  $ . "$TESTDIR/library.sh"

Setup the server

  $ hginit master
  $ cd master
  $ cat >> .hg/hgrc <<EOF
  > [extensions]
  > pushrebase=
  > [treemanifest]
  > server=True
  > [remotefilelog]
  > server=True
  > shallowtrees=True
  > EOF

Make local commits on the server for a file in a deep directory with a long
history, where the new file content is introduced on a separate branch each
time.
  $ mkdir -p a/b/c/d/e/f/g/h/i/j
  $ echo "base" > a/b/c/d/e/f/g/h/i/j/file
  $ hg commit -qAm "base"
  $ for i in 1 2 3 4 5 6 7 8 9 10 11 12
  > do
  >   echo $i >> a/b/c/d/e/f/g/h/i/j/file
  >   echo $i >> a/b/c/d/e/f/g/h/i/otherfile$i
  >   hg commit -qAm "commit $i branch"
  >   hg up -q ".^"
  >   echo $i >> a/b/c/d/e/f/g/h/i/j/file
  >   echo $i >> a/b/c/d/e/f/g/h/i/otherfile$i
  >   hg commit -qAm "commit $i"
  > done

  $ hg log -G -r 'all()' -T '{rev} {desc}'
  @  24 commit 12
  |
  | o  23 commit 12 branch
  |/
  o  22 commit 11
  |
  | o  21 commit 11 branch
  |/
  o  20 commit 10
  |
  | o  19 commit 10 branch
  |/
  o  18 commit 9
  |
  | o  17 commit 9 branch
  |/
  o  16 commit 8
  |
  | o  15 commit 8 branch
  |/
  o  14 commit 7
  |
  | o  13 commit 7 branch
  |/
  o  12 commit 6
  |
  | o  11 commit 6 branch
  |/
  o  10 commit 5
  |
  | o  9 commit 5 branch
  |/
  o  8 commit 4
  |
  | o  7 commit 4 branch
  |/
  o  6 commit 3
  |
  | o  5 commit 3 branch
  |/
  o  4 commit 2
  |
  | o  3 commit 2 branch
  |/
  o  2 commit 1
  |
  | o  1 commit 1 branch
  |/
  o  0 base
  
Create a client
  $ hgcloneshallow ssh://user@dummy/master client -q
  fetching tree '' efa8fa4352b919302f90e85924e691a632d6bea0, found via 9f95b8f1011f
  11 trees fetched over *s (glob)
  13 files fetched over *s (glob) (?)
  $ cd client
  $ cat >> .hg/hgrc <<EOF
  > [experimental]
  > evolution = createmarkers, allowunstable
  > [extensions]
  > amend=
  > [treemanifest]
  > sendtrees=True
  > [remotefilelog]
  > reponame=treeonlyrepo
  > EOF

Rename the file in a commit
  $ hg mv a/b/c/d/e/f/g/h/i/j/file a/b/c/d/e/f/g/h/i/j/file2
  fetching tree '' efa8fa4352b919302f90e85924e691a632d6bea0, found via 9f95b8f1011f
  11 trees fetched over *s (glob)
  * files fetched over *s (glob) (?)
  $ hg commit -m "rename"
  * files fetched over *s (glob) (?)

Amend the commit to add a new file with an empty cache, with descendantrevfastpath enabled
  $ clearcache
  $ echo more >> a/b/c/d/e/f/g/h/i/j/file3
  $ hg amend -A --config remotefilelog.debug=True --config remotefilelog.descendantrevfastpath=True
  adding a/b/c/d/e/f/g/h/i/j/file3
  fetching tree '' efa8fa4352b919302f90e85924e691a632d6bea0, found via 9f95b8f1011f
  11 trees fetched over *s (glob)
  * files fetched over *s (glob) (?)

Try again, disabling the descendantrevfastpath
  $ clearcache
  $ echo more >> a/b/c/d/e/f/g/h/i/j/file3
  $ hg amend -A --config remotefilelog.debug=True --config remotefilelog.descendantrevfastpath=False
  fetching tree '' efa8fa4352b919302f90e85924e691a632d6bea0, found via 9f95b8f1011f
  11 trees fetched over *s (glob)
  * files fetched over *s (glob) (?)