Sample Line To Search:
bli wh        hummm e     lzts txst           2       4


Searching consecutively from the start of the sample line above (line 6):
/\S\s\+\S

it doesn't stop on the char 'e' and on the char '2' as (I think) it should.
Others stops (matches) are OK.

Likewise, searching:
/\S\s\{2,}\S

It doesn't stop on the char '2' as (I think) it should.

The behavior is the same running:
vim -u NONE bug_sample_file