Timewise Delete doesn't behave the same on last chordrest of a measure

In the nightly build, revision 7f9585a, the current behavior of the Timewise Delete command (Ctrl+Del) removes all beats in a selection, discussed at length on this page . The command works as intended for a range, even if the range contains only a single note or rest. However, if a single notehead or rest is selected without the range box around it, (hereby referred to as a "noterest"), it exhibits two distinct behaviors:

If a "noterest" is selected that is not the last noterest a measure, then the command works as above. E.g. This:

Becomes this when Ctrl+Del is pressed:

However, if the last noterest in a measure is selected, then nothing happens. E.g. In this case:

Pressing Ctrl+Del has no effect. This is true even when the last noterest is also the first noterest.

Technical information:
Operating System: Windows 10 (64x)
3.0 Nightly Build Version: 7f9585a