Launcher freezes when switching networks whilst downloading {{.jar}}.

Steps to Reproduce:

1. As github.com/flathub/com.mojang.Minecraft/issues/145#issuecomment-1703139465 states:

   I switched from my broadband connection to a hotspot.

Screenshots/Videos:

Attached. See undermentioned:

1. https://bugs.mojang.com/secure/attachment/593046/265090569-caa3843f-c301-4461-a281-f06f635fad02.png