Fix a minor flaw in the "flip" logic.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6667 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

lib/decode65a.f90

@@ -36,9 +36,9 @@ subroutine decode65a(dd,npts,newdat,nqd,f0,nflip,mode65,ntrials,     &
         a=0.
         a(1)=xdf
         nflip=0
-        go to 900
      endif
   endif
+  if(nflip.eq.0) go to 900
 
 ! Find best DF, drift, curvature, and DT.  Start by downsampling to 344.53125 Hz
   call timer('fil6521 ',0)

lib/jt65_decode.f90

@@ -174,6 +174,7 @@ contains
        mode65=2**nsubmode
        nflip=1
        nqd=0
+       decoded='                      '
        decoded0=""
        freq0=0.
        prtavg=.false.
@@ -191,6 +192,7 @@ contains
              flip=ca(icand)%flip
              nflip=flip
           endif
+          if(sync1.lt.float(minsync)) nflip=0
           if(ipass.eq.1) ntry65a=ntry65a + 1
           if(ipass.eq.2) ntry65b=ntry65b + 1
           call timer('decod65a',0)