Shell does not recognize umlaut in URL

[Lutz Adam]

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -g -O2 
-fdebug-prefix-map=/build/bash-a6qmCk/bash-5.0=. 
-fstack-protector-strong -Wformat -Werror=format-
uname output: Linux fractal 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 
00:24:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu

Bash Version: 5.0
Patch Level: 17
Release Status: release

Description:
       If a URL on the command line or in a file contains an umlaut as in
        https://dict.leo.org/franz*ö*sisch-deutsch
        the shell stops recognising the URL after the umlaut "ö". Only 
the part
       "https://dict.leo.org/franz*ö*"; is underlined and used in a call 
to a browser.**

Repeat-By:
        Put the above URL on the command line.
        1.   Hover over the ULR. Only the left part is underlined.
        2.   Press and hold CTRL, then left-click the URL: the URL is 
opened in a browser,
              but only the left part appears in the address field.

The OS is Linux Mint 20