Bigint is rounded in results window

When I try to select a BIGINT value, it is truncated to a lower precision.

207570943474794506 may become 207570943474794500, for example.

The phenomenology is similar to this issue here, maybe the root cause is identical, too: https://github.com/mysqljs/mysql/issues/1487

Reproduce the issue by selecting a BIGINT in the results window and compare the displayed value with the original, using 207570943474794506 as an example. Read the linked mysqljs/mysql issue for related behavior; done means BIGINT values are displayed without losing precision.

Written by the indexing model from the issue text.