enable check segment cohesion

Author: briangow

wfdb/io/record.py

@@ -1177,6 +1177,9 @@ def wrsamp(self, expanded=False, write_dir=""):
         N/A
 
         """
+        # Validate segment cohesion before writing anything.
+        self._check_segment_cohesion()
+
         # Perform field validity and cohesion checks, and write the
         # header file.
         self.wrheader(write_dir=write_dir)