endless (?) loop after zoom out

[GerdP]

What steps will reproduce the problem?

1. Active plugin continuesDownload
2. After JOSM start, open download dialog, activate Raw GPS data
3. Select tab Bounding Box
4. paste this url ttps://www.openstreetmap.org/#map=17/36.406316383645226/140.49324152551503
5. press OK
6. See how lots of areas are downloaded. You end up somewhere (see 2nd screenshot)
7. Press - for zoom out 7 times (scanle shows 500.0m) and watch how the plugin downlads data for a very long time, maybe until memory is used up.

What is the expected result?

In both steps 5 and 7 the plugin should not download that much data.
Cancel button has no effect.
I've noticed this with r14734 and also with r14620

What happens instead?

plugin downloads too many areas.

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

Problem doesn't occur without Raw GPX data activated

Build-Date:2019-01-26 10:32:57
Revision:14734
Is-Local-Build:true

Identification: JOSM/1.5 (14734 SVN en) Windows 10 64-Bit
OS Build number: Windows 10 Home 1803 (17134)
Memory Usage: 589 MB / 1753 MB (452 MB allocated, but free)
Java version: 1.8.0_191-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1080
Maximum Screen Size: 1920x1080
VM arguments: [-agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:61779, -ea, -Dfile.encoding=UTF-8]
Program arguments: [--debug]

Plugins:
+ OpeningHoursEditor (34535)
+ apache-commons (34506)
+ buildings_tools (34850)
+ continuosDownload (82)
+ download_along (34838)
+ ejml (34389)
+ geotools (34513)
+ jaxb (34506)
+ jts (34524)
+ o5m (34820)
+ opendata (34805)
+ pbf (34576)
+ poly (34860)
+ reltoolbox (34788)
+ reverter (34552)
+ utilsplugin2 (34862)

Tagging presets:
+ https://raw.githubusercontent.com/OpenNauticalChart/josm/master/INT-1-preset.xml
+ https://josm.openstreetmap.de/josmfile?page=Presets/Historical_Objects&zip=1

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.

[GerdP]

after first download

[GerdP]

Sreenshot of download dialog
Sreenshot before zooming out to 500m