Delete in add mode breaks filters

[T99]

1. In the Add mode, start drawing a new way.
2. Click at least one existing node to include it in the way. The node should be either tagged with some tags or shared with another way. It doesn't matter if the node has an id yet.
3. When the way has at least two nodes total and is still red (the drawing is still active, this is important), hit the Delete key to delete the way and any of its non-tagged non-shared nodes.
4. Enable any filter and toggle its Invert flag.

What is the expected result?

All objects are alternatively visible or invisible, depending on the filter condition and the invert flag.

What happens instead?

Nodes that were part of the deleted way remain visible all the time. They are not affected by any filters.

Please provide any additional information below. Attach a screenshot if possible.

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-04-06 02:17:07 +0200 (Mon, 06 Apr 2020)
Build-Date:2020-04-06 00:18:43
Revision:16239
Relative:URL: ^/trunk

Identification: JOSM/1.5 (16239 en_GB) Windows 10 64-Bit
OS Build number: Windows 10 Home 1903 (18362)
Memory Usage: 437 MB / 989 MB (159 MB allocated, but free)
Java version: 1.8.0_161-b12, Oracle Corporation, Java HotSpot(TM) Client VM
Screen: \Display0 1920x1080, \Display1 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Last errors/warnings:
- E: java.net.SocketTimeoutException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out
- W: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: java.net.SocketTimeoutException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: connect timed out
- W: Already here java.net.SocketTimeoutException: Read timed out
- E: java.net.SocketTimeoutException: connect timed out
- W: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: java.net.SocketTimeoutException: connect timed out
- W: java.net.SocketTimeoutException: connect timed out
- W: Already here java.net.SocketTimeoutException: connect timed out
- E: java.net.SocketTimeoutException: connect timed out
- W: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: java.net.SocketTimeoutException: connect timed out

[T99]

I often use this combo to move a node to the center of a road in aerial imagery: hit a, click one shoulder of the road, click the node, click the other shoulder, hit shift-B, hit Delete. Later when searching for FIXME nodes (for example), I have wondered why some ordinary nodes remain visible. Today I finally figured out the connection.