get fails with array parameter names like "x[1,1]"

[scheidan]

Thanks or this handy package!
While looking at namesingroup I found that get cannot handle names with square brackets:

using MCMCChains # v5.3.1

x = rand(10, 4)

# chain with array names
chn = Chains(x,  ["a", "b", "c[1]", "c[2]"])

chn["c[1]"]                     # works
chn[Symbol("c[1]")]             # works
get(chn, [:a, :b])              # works

# all these return an empty NamedTuple
get(chn, Symbol("c[1]"))        
get(chn, Symbol(["c[1]", "c[2]"]))
get(chn, namesingroup(chn, :c))


# --- all works as expected with dots:
chn2 = Chains(x,  ["a", "b", "c.d", "c.e"])

chn2["c.d"]
chn2[Symbol("c.d")]
get(chn2, [:a, :b])

get(chn2, Symbol("c.d"))
get(chn2, Symbol.(["c.d", "c.e"]))
get(chn2, namesingroup(chn2, :c, index_type=:dot))