Typically, addresses in the Netherlands have 4 digits, followed by 0 or 1 space, followed by 2 alphanumeric characters, e.g. "7512EC" or "7512 EC". The alphanumeric characters should not be "SA", "SD" or "SS":
/^[1-9][0-9]{3} ?(?!sa|sd|ss)[a-z]{2}$/i;
This bug is to track the latter case, i.e. "7512 EC".
Typically, addresses in the Netherlands have 4 digits, followed by 0 or 1 space, followed by 2 alphanumeric characters, e.g. "7512EC" or "7512 EC". The alphanumeric characters should not be "SA", "SD" or "SS":
/^[1-9][0-9]{3} ?(?!sa|sd|ss)[a-z]{2}$/i;
This bug is to track the latter case, i.e. "7512 EC".