Pointid prefix

[AustinSanders]

Fixes #213

point_id was being altered (adding prefix/suffix) and then was overwritten by the original value. This adds logic to prevent it from being overwritten.

Licensing

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This work is free and unencumbered software released into the public domain. In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain.

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