griveignore malfunction with new boost

[Artox]

Hi there,
I noticed that on opensuse tumbleweed my griveignore turned mad matching only pdf files on first and second levels.
However my griveignore is designed as a whitelist for a bunch of folders and *.pdf at root
This worked as expected in opensuse leap. The most obvious difference between those two systems is the boost library version.
For reference this is the griveignore:

*
!IMX
!Scores
!*.pdf

And this is the pattern in .grive_state:
"ignore_regexp":"^(?!IMX|Scores|[^/]*\\.pdf)([^/]*)$"

It looks identical to a working system, but it does not work as expected any more :(

Last known working: 1.65.1
First known broken: 1.67.0

EDIT: removed patch which did not work!!!

[vitalif]

Did you just install a new version? It could be affected by a change from PR #201

[Artox]

Yes indeed :( Thanks for pointing it out, and finding the problem! master works as expected on a dry-run :)