Redisplay loss on frame resize [21.2.20,cygwin32] possibly related to Re: 10% redisplay speed up...

Folks, With the latest from CVS, my XEmacs does not redraw the frame after a frame resize operation but waits for another event (e.g., mouse click, keystroke). The upshot is that if I shrink the window, I see a frame with no modeline or scrollbars. It's purely a visual bug and easily worked around. uname -a: CYGWIN_NT-4.0 LOON 20.1 (0.3/1/1) 1998-12-3 20:39:18 i586 unknown ./configure '--cppflags=-I/usr/local/include' '--ldflags=-L/usr/local/lib' XEmacs 21.2-b20 "Yoko" configured for `i586-pc-cygwin32'. Where should the build process find the source code? /usr/local/src/xemacs-cvs What installation prefix should install use? /usr/local What operating system and machine description files should XEmacs use? `s/cygwin32.h' and `m/intel386.h' What compiler should XEmacs be built with? gcc -g -O3 -Wall -Wno-switch Should XEmacs use the GNU version of malloc? yes Should XEmacs use the relocating allocator for buffers? default What window system should XEmacs use? msw Compiling in support for XPM images. Compiling in support for PNG image handling. Compiling in support for (builtin) GIF image handling. Compiling in support for JPEG image handling. Compiling in support for TIFF image handling. Compiling in support for GNU DBM. Compiling in support for ncurses. Compiling in File coding support. Compiling in EXPERIMENTAL support for Drag'n'Drop ( msw ). Using MS-Windows menubars. Using MS-Windows scrollbars. Using MS-Windows native widgets. Using MS-Windows dialog boxes. movemail will use "dot-locking" for locking mail spool files. Compiling in extra code for debugging. WARNING: --------------------------------------------------------- WARNING: Compiling in support for runtime error checking. WARNING: XEmacs will run noticeably more slowly as a result. WARNING: Error checking is on by default for XEmacs beta releases. WARNING: --------------------------------------------------------- -- Sam Mikes smikes(a)alumni.hmc.edu