Potential data loss of Google file formats

[timmornYE]

Drive is not syncing Google file formats. This can lead to data loss when syncing recursively. Reproduce:

1. Create a subfolder in drive e.g. /folder1/folder2/folder3
2. Create a Google Document in /folder1/folder2/folder3 and put a pdf in there
3. Create a folder /folder1/folder4 in drive
4. Pull /folder1 recursively to your disk
5. Move "folder3" to "folder4" on your disk
6. Push /folder1 to Drive
7. The Google Document goes to trash

[odeke-em]

Possible duplicate of issue #11.