Currently, if you use a <b-table> with a filter function, the "empty" and "emptyfiltered" cases are not distinguishable. For example, if you use a filter function and the table is also empty, you will see the "emptyfiltered" case, when the "empty" case is expected.

The root cause is checking !!t.filter internally, which will always be truthy when using a function. The ideal solution would be to check the items array and compare that against the items being rendered. (not familiar with internals, so not sure if it's easy to do)