GPU: Constraint Snp after Kalman update as it can be that |Snp| > 1 leading to problems afterwards

Author: davidrohr

GPU/GPUTracking/Merger/GPUTPCGMTrackParam.cxx

@@ -302,6 +302,7 @@ GPUd() bool GPUTPCGMTrackParam::Fit(GPUTPCGMMerger* GPUrestrict() merger, int iT
       CADEBUG(printf("\t%21sFit     Alpha %8.3f    , X %8.3f - Y %8.3f, Z %8.3f   -   QPt %7.2f (%7.2f), SP %5.2f (%5.2f), DzDs %5.2f %16s    ---   Cov sY %8.3f sZ %8.3f sSP %8.3f sPt %8.3f   -   YPt %8.3f   -   Err %d\n", "", prop.GetAlpha(), mX, mP[0], mP[1], mP[4], prop.GetQPt0(), mP[2], prop.GetSinPhi0(), mP[3], "", sqrtf(mC[0]), sqrtf(mC[2]), sqrtf(mC[5]), sqrtf(mC[14]), mC[10], retVal));
       // clang-format on
 
+      ConstrainSinPhi();
       if (retVal == 0) // track is updated
       {
         noFollowCircle2 = false;