I think it’s picking up on the pipes | when the regex is copy-pasted in. I think if you type it in manually it may ignore them as separators and allow you to do it as one entry. 
ETA: From a quick test, this seems promising. 
I think it’s picking up on the pipes | when the regex is copy-pasted in. I think if you type it in manually it may ignore them as separators and allow you to do it as one entry.
ETA: From a quick test, this seems promising.