Sitecore 7.0 : WFFM 2.3.0 - End of String Expected Error

Got hit today by this issue when I was validating our latest WFFM installation for our Dev SC7.0 instances. Some existing pages with WFFM forms in them where throwing these exceptions. After a lot of searching and troubleshooting, I remembered that I ran into this issue before; with the Sitecore queries. SC queries in particular do not like "and", "or" and "-" in item names (paths). I suspect, Sitecore.Forms.Core.dll contains a new call using an SC query.

Looks like this breaking change was not documented in the SDN.

My current alternative is to move these affected forms elsewhere i.e. under items without the prohibited character and words.

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