fixed bug in getranges for untyped varinfo

Author: torfjelde

src/varinfo.jl

@@ -646,7 +646,7 @@ setrange!(md::Metadata, vn::VarName, range) = md.ranges[getidx(md, vn)] = range
 Return the indices of `vns` in the metadata of `vi` corresponding to `vn`.
 """
 function getranges(vi::VarInfo, vns::Vector{<:VarName})
-    return mapreduce(Base.Fix1(getrange, vi), vcat, vns; init=Int[])
+    return map(Base.Fix1(getrange, vi), vns)
 end
 # A more efficient version for `TypedVarInfo`.
 function getranges(varinfo::DynamicPPL.TypedVarInfo, vns::Vector{<:DynamicPPL.VarName})