rizin crashes when run fd with invalid command

[Nong Hoang Tu]

Work environment

Questions	Answers
OS/arch/bits (mandatory)	Parrot OS 6.0, AMD64
File format of the file you reverse (mandatory)	ELF
Architecture/bits of the file (mandatory)	x86/64
rizin -v full output, not truncated (mandatory)	rizin 0.7.2 @ linux-x86-64

Expected behavior

Program doesn't crash

Actual behavior

Program crashes when run command fd with rizin's invalid command (in backstick)

fd @ `entry1`

Steps to reproduce the behavior

• Open rizin (no file or any file)
• Run

fd @ `entry0`

• See the crash

Additional Logs, screenshots, source code, configuration dump, ...

Program output of crash

[0x00000000]> fd @ `entry0`
ERROR: Command 'entry0' does not exist.
ERROR: Displaying the help of command 'e'.

ERROR: Usage: e[?]   # List/get/set config evaluable vars
| e <key>[=<val|?>] [<key>[=<val|?>] ...]] # Get/Set value of config variable <key>
| el[j*qlJ] [<key>]      # List config variables with their descriptions
| e-                     # Reset config variables
| e! <key>               # Invert the boolean value of config variable <key>
| ec[?]                  # Set color for given key (prompt, offset, ...)
| ee <key>               # Open editor to change the value of config variable <key>
| er <key>               # Set config variable <key> as read-only
| es [<key>]             # List all config variable spaces or sub-keys/sub-spaces if a <key> is provided
| et <key>               # Show type of given config variable <key>

Detailed help for e <key>[=<val|?>] [<key>[=<val|?>] ...]] is provided by e??.
ERROR: Error while substituting arguments
WARNING: rz_cmd_parsed_args_argstr: assertion 'a && a->argv && a->argv[0]' failed (line 1948)