Expire pragma statements when reset, even if they were not run to completion.

FossilOrigin-Name: 78351d289bba83e536b64666c566b7bfc57351da

src/vdbeInt.h

@@ -301,6 +301,7 @@ struct Vdbe {
   u8 explain;             /* True if EXPLAIN present on SQL command */
   u8 changeCntOn;         /* True to update the change-counter */
   u8 expired;             /* True if the VM needs to be recompiled */
+  u8 runOnlyOnce;         /* Automatically expire on reset */
   u8 minWriteFileFormat;  /* Minimum file format for writable database files */
   u8 inVtabMethod;        /* See comments above */
   u8 usesStmtJournal;     /* True if uses a statement journal */