ECPG bug: "unterminated quoted identifier"

Hello
I have code:

void main()
{
char *foo = "aaa\"bbb";
EXEC SQL char *bar = "aaa\"bbb";
}

ecpg --version
ecpg (PostgreSQL) 13.0 (Ubuntu 13.0-1.pgdg20.04+1)

ecpg sample.pgc -o 1.c
sample .pgc:10: ERROR: unterminated quoted identifier