back-tab locks up 0.17.3 in Windows, with fix

Here's the scenario:
Start tn5250, sign on to System i.
wrkmbrpdm
Position cursor to row 7, column 11.  This is the first character of the
member name column.
Shift-tab.
Lock up.

I believe there's a missing 'break;' in
tn5250_display_set_cursor_prev_progression_field

Would appreciate a second set of eyes, although it works OK here.
Although I used the diff from Cygwin, I'm using make from Mingw/Msys.

Also, browsing in CVS, it says the source files are dead/removed.
http://tn5250.cvs.sourceforge.net/viewvc/tn5250/tn5250/src/display.c?hideattic=0&revision=1.74&view=markup
start around line 940 or search for 'differentfieldfound = 1;'
  --buck

$ diff -bur /cygdrive/c/tn5250-0.17.3/src/display.c
/cygdrive/c/tn5250-0.17.3/src/display_1.74.c

--- /cygdrive/c/tn5250-0.17.3/src/display.c     2008-11-18
14:35:03.265625000 -0500
+++ /cygdrive/c/tn5250-0.17.3/src/display_1.74.c        2008-11-18
14:34:13.218000000 -0500
@@ -957,7 +957,6 @@
       else
        {
          differentfieldfound = 1;
-         break;
        }

       if (field->nextfieldprogressionid == currentfield)
-- 
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