Bug Fix

Author: JoeyT1994

src/abstractitensornetwork.jl

@@ -642,7 +642,7 @@ end
 function tree_gauge(alg::Algorithm, ψ::AbstractITensorNetwork, cur_region::Vector, new_region::Vector; kwargs...)
   path = gauge_path(ψ, cur_region, new_region)
   if !isempty(path)
-    ψ = typeof(ψ)(gauge_walk(alg, ψ, path; kwargs...))
+    ψ = gauge_walk(alg, ψ, path; kwargs...)
   end
   return ψ
 end

src/treetensornetworks/abstracttreetensornetwork.jl

@@ -36,7 +36,7 @@ function set_ortho_region(tn::AbstractTTN, new_region)
 end
 
 function gauge(alg::Algorithm, ttn::AbstractTTN, region::Vector; kwargs...)
-  ttn = gauge(alg, ttn, ortho_region(ttn), region; kwargs...)
+  ttn = tree_gauge(alg, ttn, collect(ortho_region(ttn)), region; kwargs...)
   return set_ortho_region(ttn, region)
 end