Confusing Regex-Pattern

[FiSHonAUT]

There is this line in the Obfuscation Module:
sPattern = "([\s])" & sFinde & "(\_{1}[A-Za-zÀ-ßà-ÿ¨¸]{4,40}(?:\:\s|\n|\r))"

Why exactly is there (?:\:\s|\n|\r)? It breaks the obfuscation when I manually call a control event

e.g.

Private Sub MyCombobox_Change() <== This gets obfuscated correctly
    Do Something
End Sub

Private Sub SomeOtherSub()
    MyCombobox_Change <== This one stays and is not obfuscated, therefore break the code
End Sub

I removed (?:\:\s|\n|\r) and it worked for me. But I wonder if it has an important purpose?