### Please describe the problem.

in v6 mode -- Result depends on having a good sleep before running 'git annex add'.

Without sleep, git annex manages first to stage file to be committed into git, but then also modifies it to be added into annex  (this is not shown above -- just inspect that repository obtained without having any sleep)

I guess relates to http://git-annex.branchable.com/bugs/Too_difficult_if_not_impossible_to_explicitly_add__47__keep_file_under_git___40__not_annex__41___in_v6_without_employing_.gitattributes/

### What steps will reproduce the problem?

Run http://www.onerussian.com/tmp/ga-3.sh  twice:  once giving 0 secs to sleep, and then 1 (or about 0.3 might work as well)


### What version of git-annex are you using? On what operating system?

6.20170209+gitg16be7b5cc-1~ndall+1

### Please provide any additional information below.

if we just proceed with the script (init, add, status) without any delays -- git annex status would report it 
[[!format sh """
$> ./ga-3.sh 0
+ s=0
++ mktemp -d
+ d=/home/yoh/.tmp/tmp.d6g0E7scxt
+ echo 'directory: /home/yoh/.tmp/tmp.d6g0E7scxt'
directory: /home/yoh/.tmp/tmp.d6g0E7scxt
+ cd /home/yoh/.tmp/tmp.d6g0E7scxt
+ git init
Initialized empty Git repository in /tmp/tmp.d6g0E7scxt/.git/
+ git annex init --version=6
init  ok
(recording state in git...)
+ sed -i -e 's,pre-commit ,pre-commit --debug ,g' .git/hooks/pre-commit
+ echo 'I: creating a file'
I: creating a file
+ echo whatever
+ sleep 0
+ git -c annex.largefiles=nothing annex --debug add file5
[2017-02-17 10:19:48.91932971] read: git ["--git-dir=.git","--work-tree=.","--literal-pathspecs","ls-files","--others","--exclude-standard","-z","--","file5"]
add file5 (non-large file; adding content to git repository) ok
[2017-02-17 10:19:48.923428344] read: git ["--git-dir=.git","--work-tree=.","--literal-pathspecs","ls-files","--modified","-z","--","file5"]
(recording state in git...)
[2017-02-17 10:19:48.927922289] feed: xargs ["-0","git","--git-dir=.git","--work-tree=.","--literal-pathspecs","add","--"]
[2017-02-17 10:19:48.956812867] process done ExitSuccess
+ git annex status
M file5
"""]]

And if we wait just a bit before running add -- we would get it reported added
[[!format sh """
hopa:~/.tmp
$> ./ga-3.sh 1
+ s=1
++ mktemp -d
+ d=/home/yoh/.tmp/tmp.4I7ym6dSx2
+ echo 'directory: /home/yoh/.tmp/tmp.4I7ym6dSx2'
directory: /home/yoh/.tmp/tmp.4I7ym6dSx2
+ cd /home/yoh/.tmp/tmp.4I7ym6dSx2
+ git init
Initialized empty Git repository in /tmp/tmp.4I7ym6dSx2/.git/
+ git annex init --version=6
init  ok
(recording state in git...)
+ sed -i -e 's,pre-commit ,pre-commit --debug ,g' .git/hooks/pre-commit
+ echo 'I: creating a file'
I: creating a file
+ echo whatever
+ sleep 1
+ git -c annex.largefiles=nothing annex --debug add file5
[2017-02-17 10:19:52.529445464] read: git ["--git-dir=.git","--work-tree=.","--literal-pathspecs","ls-files","--others","--exclude-standard","-z","--","file5"]
add file5 (non-large file; adding content to git repository) ok
[2017-02-17 10:19:52.533532166] read: git ["--git-dir=.git","--work-tree=.","--literal-pathspecs","ls-files","--modified","-z","--","file5"]
(recording state in git...)
[2017-02-17 10:19:52.537789158] feed: xargs ["-0","git","--git-dir=.git","--work-tree=.","--literal-pathspecs","add","--"]
[2017-02-17 10:19:52.567222419] process done ExitSuccess
+ git annex status
A file5
"""]]

[[!meta author=yoh]]
[[!tag projects/datalad]]

[[done]]
