Topic #3070 (no title)

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This is a spacer post for a website comment topic. The content this topic relates to: #1968 - Calculatr addon results in error

I committed a fix to github for this error. It was due to uniqid('',true) returning an ID with a decimal point in it and Java didn't like that. uniqid() would probably be good enough, but I chose to wrap it in a str_replace to replace the decimal point with an underscore. The cache $map array key was causing an extra input field on the calculator form, so I added an additional $key check for cache.