[MlMt] Mailmate 1.13.2 freezes when I start to type anything in "To:" field

[TJ Luoma]

/Applications/MailMate.app:
     CFBundleShortVersionString: 1.13.2
     CFBundleVersion: 5673

As soon as I either type or paste something into the "To:" field of a new
message, I get the SPOD and Mailmate is shown as "Application Not
Responding" in Activity Monitor.

Anyone seen this before? Any suggestions on what to do? Hopefully fixing
this doesn't mean blowing away all of my customizations.

~ Tj
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