But this rule goes even further: When you create a new reference or REFERENCE_LIST field on one of your record types, you have the option to automatically create a back-reference.
You will find them in the reference stacks in the back.
你可以在后面的参考书区里找到。
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The above expression will create the same effect as the previous backreference example, but by instead using named groups. It is also significantly easier to read.