Cannot `convert` an object of type SymbolicUtils.BasicSymbolic{Number} to an object of type Complex{Num}

[songjhaha]

In Julia 1.11

using Symbolics
@variables t::Real x::Number y::Complex z(t)

got error:

julia>  @variables t::Real x::Number y::Complex z(t)
ERROR: MethodError: Cannot `convert` an object of type SymbolicUtils.BasicSymbolic{Number} to an object of type Complex{Num}
The function `convert` exists, but no method is defined for this combination of argument types.

Closest candidates are:
  (::Type{Complex{T}} where T<:Real)(::Any, ::Any)
   @ Base complex.jl:14
  convert(::Type{T}, ::T) where T<:Number
   @ Base number.jl:6
  convert(::Type{T}, ::T) where T
   @ Base Base.jl:126
  ...

Stacktrace:
 [1] setindex!(A::Vector{Complex{Num}}, x::SymbolicUtils.BasicSymbolic{Number}, i::Int64)
   @ Base .\array.jl:987
 [2] (::Base.var"#129#130"{Vector{Complex{Num}}})(i::Int64, v::SymbolicUtils.BasicSymbolic{Number})
   @ Base .\array.jl:408
 [3] afoldl(::Base.var"#129#130"{Vector{…}}, ::Int64, ::Num, ::SymbolicUtils.BasicSymbolic{Number}, ::Complex{Num}, ::Num)
   @ Base .\operators.jl:554
 [4] getindex(::Type{Complex{Num}}, ::Num, ::SymbolicUtils.BasicSymbolic{Number}, ::Complex{Num}, ::Num)
   @ Base .\array.jl:407
 [5] vect(::Num, ::Vararg{Any})
   @ Base .\array.jl:185
 [6] top-level scope
   @ REPL[4]:1
Some type information was truncated. Use `show(err)` to see complete types.

Julia 1.10 could run this code，but could get same error if we reverse variables list like @variables y::Complex x::Number t::Real z(t)