" ".trimmed() does not trim

[MaximusMcCann]

print(" ".trimmed())
print(" ".trimmed().characters.count) // returns 1
print("  ".trimmed())
print("  ".trimmed().characters.count) // returns 2
print("   ".trimmed())
print("   ".trimmed().characters.count) // returns 3

Would expect all to return a "" string with 0 length