After updating ionic cli my .ttf fonts are not copied to www folder

.otf fonts are copied but not the .ttf files
My fonts are in the src/assets/fonts
This problem occurs when running “ionic cordova run ios”

my ionic info:
cli packages:

@ionic/cli-utils  : 1.9.2
ionic (Ionic CLI) : 3.9.2

global packages:

Cordova CLI : 7.0.1
Gulp CLI    : CLI version 3.9.1 Local version 3.9.1

local packages:

@ionic/app-scripts : 1.3.7
Cordova Platforms  : android 6.2.3 ios 4.4.0
Ionic Framework    : ionic-angular 3.5.3


Android SDK Tools : 26.0.2
ios-deploy        : 1.9.1
Node              : v6.11.1
npm               : 3.10.10
OS                : macOS Sierra
Xcode             : Xcode 8.3.3 Build version 8E3004b

It seems that ionic app scripts removes “unused” fonts from cordova fonts directory! and ttf fonts are included as “unused”, so I converted all of my ttf fonts to otf format and everything is OK now.

Yeah, seems a new CLI feature is a bit to “generous” in removing stuff. Here is another topic about that:

People posted workaround there as well.
(There I also linked a Github issue that could use +1 and comments so the devs know this affects lots of people)