Hi!
After the merge from emacs-26, the highlighting of a region
stopped working for me after setting the mark or selecting a
region with the mouse.
I bisected the problem and it was introduced in commit
f6818e761eaafe095e07249180dc8f9a329f1473
Since this seems to be related to GTK, for the record, I have
libgtk2.0-0 version 2.24.30-4. But it might be relevant to let you
know that I use openbox, run as a standalone session.
Thanks for posting this. I have seen this bug, but haven't yet figured out how to consistently reproduce it.
Symptoms:
C-SPC M-f
(nothing happens! the text does not get selected (or doesn't seem to))
Then I do M-x revert-buffer, and C-SPC M-f starts working again.
I have faced this infrequently, and don't yet have a clean recipe to reproduce it.
My Emacs version:
Emacs version: GNU Emacs 26.0.60 (build 7, x86_64-pc-linux-gnu, GTK+ Version 2.24.23)
of 2017-09-25, built using commit 827db6b559100153fd7dcab1ecdabd9233e906ab.
./configure options:
--with-modules --prefix=/home/kmodi/usr_local/apps/6/emacs/emacs-26 '--program-transform-name=s/^ctags$/ctags_emacs/' 'CPPFLAGS=-I/home/kmodi/usr_local/6/include -I/usr/include/freetype2 -I/usr/include' 'CFLAGS=-ggdb3 -O0' 'CXXFLAGS=-ggdb3 -O0' 'LDFLAGS=-L/home/kmodi/usr_local/6/lib -L/home/kmodi/usr_local/6/lib64 -ggdb3'
Features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK2 X11 MODULES