The following strings in https://translations.launchpad.net/telegram-app/v2/+pots/telegram-app are not properly formatted to allow localizers to translate plurals correctly for each locale (e.g for our locale I should be offered 4 translatable strings as we have 4 plural forms).
%1 members, %2 online
Located in /home/karni/src/telegram/telegram-app/v2/telegram/app/qml/ProfilePage.qml:228 /home/karni/src/telegram/telegram-app/v2/telegram/app/qml/components/TelegramHeader.qml:57
%1 members
Located in /home/karni/src/telegram/telegram-app/v2/telegram/app/qml/ProfilePage.qml:231 /home/karni/src/telegram/telegram-app/v2/telegram/app/qml/components/TelegramHeader.qml:60
Compare https://translations.launchpad.net/telegram-app/v2/+pots/telegram-app/gd/148/+translate which allows for correct plurals:
%1 second
%1 seconds