Autocomplete error in Pkg mode

[jakobnissen]

MWE:

• Launch Julia 1.12.0-beta4 (also reproduces on nightly as of 2025-06-10)
• Enter Pkg mode
• Type in add minimap2
• Then tap the right arrow
  Results in:

(asm) pkg> add minimap2┌ Error: Error in the keymap
│   exception =
│    FieldError: type String has no field `second`; String has no fields at all.
│    Stacktrace:
│     [1] getproperty(x::String, f::Symbol)
│       @ Base ./Base_compiler.jl:54
│     [2] edit_move_right(m::REPL.LineEdit.MIState)
│       @ REPL.LineEdit ~/.julia/juliaup/julia-1.12.0-beta4+0.x64.linux.gnu/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:836
│     [3] (::REPL.LineEdit.var"#223#224")(::REPL.LineEdit.MIState, ::Any, ::Vararg{Any})
│       @ REPL.LineEdit ~/.julia/juliaup/julia-1.12.0-beta4+0.x64.linux.gnu/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:2656
│     [4] (::REPL.LineEdit.var"#match_input##0#match_input##1"{REPL.LineEdit.var"#223#224", String})(s::Any, p::Any)
│       @ REPL.LineEdit ~/.julia/juliaup/julia-1.12.0-beta4+0.x64.linux.gnu/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:1810
│     [5] macro expansion
│       @ ~/.julia/juliaup/julia-1.12.0-beta4+0.x64.linux.gnu/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:2960 [inlined]
│     [6] macro expansion
│       @ ./lock.jl:376 [inlined]
│     [7] (::REPL.LineEdit.var"#prompt!##2#prompt!##3"{REPL.Terminals.TTYTerminal, REPL.LineEdit.ModalInterface, REPL.LineEdit.MIState, REPL.LineEdit.Prompt})()
│       @ REPL.LineEdit ~/.julia/juliaup/julia-1.12.0-beta4+0.x64.linux.gnu/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:2949
└ @ REPL.LineEdit ~/.julia/juliaup/julia-1.12.0-beta4+0.x64.linux.gnu/share/julia/stdlib/v1.12/REPL/src/LineEdit.jl:2962