From deb312b2934d8b526c161702d755cc8a6f8ea3ca Mon Sep 17 00:00:00 2001
From: Rick Sellens <sellensr@gmail.com>
Date: Wed, 29 Jan 2020 19:52:13 -0500
Subject: [PATCH] Clear thisSentence and thisSource at start of each check

that way previous sentence identifiers won't bleed through on failure.
---
 src/NMEA_parse.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/NMEA_parse.cpp b/src/NMEA_parse.cpp
index 942d198..97d603a 100644
--- a/src/NMEA_parse.cpp
+++ b/src/NMEA_parse.cpp
@@ -545,6 +545,7 @@ bool Adafruit_GPS::parse(char *nmea) {
 /**************************************************************************/
 boolean Adafruit_GPS::check(char *nmea) {
   thisCheck = 0; // new check
+  *thisSentence = *thisSource = 0;
   if (*nmea != '$' && *nmea != '!')
     return false; // doesn't start with $ or !
   else