Yes, i did it via 'git bisect'.

Here is the first related commit:

d5ba75f8881f0869dc16f71f7395514c0a35b6e2 is the first bad commit
commit d5ba75f8881f0869dc16f71f7395514c0a35b6e2
Author: Thomas Hellstrom <thellstrom@vmware.com>
Date:   Tue Jun 20 19:24:34 2017 +0200

    st/dri2 Plumb the flush_swapbuffer functionality through to dri3

    Implement the state tracker manager drawable interface flush_swapbuffer
    method by plumbing it through to dri3 if available.

    Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
    Reviewed-by: Marek Olšák <marek.olsak@amd.com>
    Reviewed-by: Brian Paul <brianp@vmware.com>
    Reviewed-by: Sinclair Yeh <syeh@vmware.com>

:040000 040000 8df730d2ac95b42435c96043da0eb6fba5f6861c
4179b3bb9a075169627eb00de5780bbbe8abea02 M      src

I hope it makes sense and can help you.