fix(x/auth): set from flag in multi-sign command (#19239)

Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com>

x/auth/CHANGELOG.md

@@ -51,5 +51,6 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Bug Fixes
 
+* [#19239](https://github.com/cosmos/cosmos-sdk/pull/19239) Sets from flag in multi-sign command to avoid no key name provided error.
 * [#19099](https://github.com/cosmos/cosmos-sdk/pull/19099) `verifyIsOnCurve` now checks if we are simulating to avoid malformed public key error.
 

x/auth/client/cli/tx_multisign.go

@@ -70,6 +70,7 @@ func makeMultiSignCmd() func(cmd *cobra.Command, args []string) (err error) {
 		file := args[0]
 		name := args[1]
 		sigsRaw := args[2:]
+		_ = cmd.Flags().Set(flags.FlagFrom, args[1])
 
 		clientCtx, err := client.GetClientTxContext(cmd)
 		if err != nil {