Game doesn't start on linux. (Ncurses + terminfo issue)

The game doesn't start unless you set the TERM shell variable to xterm.

Otherwise it crashes with the following error:

Code:

$HOME/.steam/steam/steamapps/common/Stardew Valley$ ./StardewValley
exception inside UnhandledException handler: The type initializer for 'System.Console' threw an exception.

[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type initializer for 'System.Console' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.ConsoleDriver' threw an exception. ---> System.Exception: Magic number is wrong: 542
  at System.TermInfoReader.ReadHeader (System.Byte[] buffer, System.Int32& position) <0x410405a0 + 0x00127> in <filename unknown>:0
  at System.TermInfoReader..ctor (System.String term, System.String filename) <0x410403e0 + 0x00127> in <filename unknown>:0
  at System.TermInfoDriver..ctor (System.String term) <0x4103f330 + 0x00193> in <filename unknown>:0
  at System.ConsoleDriver.CreateTermInfoDriver (System.String term) <0x4103f2f0 + 0x00027> in <filename unknown>:0
  at System.ConsoleDriver..cctor () <0x4103f000 + 0x000a7> in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Console.SetupStreams (System.Text.Encoding inputEncoding, System.Text.Encoding outputEncoding) <0x4103e9b0 + 0x00043> in <filename unknown>:0
  at System.Console..cctor () <0x4103e6c0 + 0x00173> in <filename unknown>:0
  --- End of inner exception stack trace ---
  at StardewValley.Game1.set_gameMode (Byte value) <0x410412f0 + 0x00053> in <filename unknown>:0
  at StardewValley.Program.handleException (System.Object sender, System.UnhandledExceptionEventArgs args) <0x41040f50 + 0x00047> in <filename unknown>:0

This is caused by changes in ncurses 6 terminfo files.
See this issue on mono from 18 months ago:
https://github.com/mono/mono/issues/6752#issuecomment-365212655

This problem has been fixed in Mono in the mean time. (since version 5.12) However Stardew Valley still runs on mono 4.5 which still crashes.

Is there an upgrade of mono planned? Or is there another fix?