Displaying blurry images when moving the map

[naoliv]

It seems that when JOSM needs to download some new tiles, it displays all the tiles with a lower resolution version, instead keeping the already downloaded ones displayed.

Take a look at the video and you should better understand the problem, please.

JOSM:

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-09-28 01:09:23 +0200 (Fri, 28 Sep 2018)
Revision:14277
Build-Date:2018-09-28 01:34:04
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (14277 pt_BR) Linux Debian GNU/Linux unstable (sid)
Memory Usage: 395 MB / 3072 MB (140 MB allocated, but free)
Java version: 10.0.2+13-Debian-1, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Java package: openjdk-10-jre:amd64-10.0.2+13-1
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-21
VM arguments: [-Dawt.useSystemAAFontSettings=gasp]
Dataset consistency test: No problems found

[wiktorn]

In 14287/josm:

Rollback [14260].

Because of regressions rollback of [14260].

See: #14562, #16747
Closes: #16789