### Please describe the problem.
After initializing an empty new v7 repo in a remote NTFS drive from linux mounted via CIFS, adding new file fails with a SQLite3 error.
Using a v5 repo in direct mode works (with git annex init --version=5).

### What steps will reproduce the problem?
[[!format sh """
$ git init .
$ git annex init test
$ git annex add file1
add file1
git-annex: SQLite3 returned ErrorBusy while attempting to perform close: unable to close due to unfinalized statements or unfinished backups.
failed
git-annex: add: 1 failed
"""]]

### What version of git-annex are you using? On what operating system?
Ubuntu 19.04

git-annex version: 7.20190129
build flags: Assistant Webapp Pairing S3(multipartupload)(storageclasses) WebDAV Inotify DBus DesktopNotify TorrentParser MagicMime Feeds Testsuite
dependency versions: aws-0.20 bloomfilter-2.0.1.0 cryptonite-0.25 DAV-1.3.3 feed-1.0.0.0 ghc-8.4.4 http-client-0.5.13.1 persistent-sqlite-2.8.2 torrent-10000.1.1 uuid-1.3.13 yesod-1.6.0
key/value backends: SHA256E SHA256 SHA512E SHA512 SHA224E SHA224 SHA384E SHA384 SHA3_256E SHA3_256 SHA3_512E SHA3_512 SHA3_224E SHA3_224 SHA3_384E SHA3_384 SKEIN256E SKEIN256 SKEIN512E SKEIN512 BLAKE2B256E BLAKE2B256 BLAKE2B512E BLAKE2B512 BLAKE2B160E BLAKE2B160 BLAKE2B224E BLAKE2B224 BLAKE2B384E BLAKE2B384 BLAKE2S256E BLAKE2S256 BLAKE2S160E BLAKE2S160 BLAKE2S224E BLAKE2S224 BLAKE2SP256E BLAKE2SP256 BLAKE2SP224E BLAKE2SP224 SHA1E SHA1 MD5E MD5 WORM URL
remote types: git gcrypt p2p S3 bup directory rsync web bittorrent webdav adb tahoe glacier ddar hook external
operating system: linux x86_64
supported repository versions: 5 7
upgrade supported from repository versions: 0 1 2 3 4 5 6

### Please provide any additional information below.

[[!format sh """
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log

$ mount
//192.168.0.1/myserver/myfolder on /media/mydisk type cifs (rw,nosuid,nodev,noexec,relatime,vers=1.0,cache=none,username=myname,uid=1000,forceuid,gid=1000,forcegid,addr=192.168.0.1,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,rsize=61440,wsize=65536,bsize=1048576,echo_interval=60,actimeo=1)
$ mkdir /media/mydisk/tmp
$ cd /media/mydisk/tmp
$ date > file1

$ echo "The following fails..."
$ git init .
Dépôt Git vide initialisé dans /media/wdtv/tmp/.git/
$ git annex init test
init test 
  Detected a filesystem without fifo support.

  Disabling ssh connection caching.

  Detected a crippled filesystem.

  Entering an adjusted branch where files are unlocked as this filesystem does not support locked files.

Basculement sur la branche 'adjusted/master(unlocked)'
ok
(recording state in git...)
$ git annex add .
add file1 
git-annex: SQLite3 returned ErrorBusy while attempting to perform close: unable to close due to unfinalized statements or unfinished backups
failed
git-annex: add: 1 failed

$ echo "The following works..."
$ rm -rf .git/
$ git init .
Dépôt Git vide initialisé dans /media/wdtv/tmp/.git/
$ git annex init --version=5 test
init test 
  Detected a filesystem without fifo support.

  Disabling ssh connection caching.

  Detected a crippled filesystem.

  Enabling direct mode.
ok
(recording state in git...)
$ git annex add .
add file1 ok
(recording state in git...)

# End of transcript or log.
"""]]

### Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)

When initializing the repo with v5 git-annex (git annex init --version=5 test), then the legacy direct mode is used and file addition works well.

