fix(group-management): Fixed using mute bug lik ->

'/mute 1m'

In this bug, when we killed a person, due to ".split(" ")[1]" it was returned to us as undefined and the program thought that the admin did not specify the time and silenced the user forever.

Author: bitsgenix

src/group-management/AdminCommand.ts

@@ -76,7 +76,6 @@ export class AdminCommand {
     const userId = await bot.getRepliedUserId();
     const durationStr = String(ctx.match as string)
       .trim()
-      .split(" ")[1];
     let durationMs: number | null = null;
     if (durationStr) {
       durationMs = parseDuration(durationStr);