Fix ApproxFun#740

Author: dlfivefifty

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFunBase"
 uuid = "fbd15aa5-315a-5a7d-a8a4-24992e37be05"
-version = "0.4.4"
+version = "0.4.5"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"

src/PDE/KroneckerOperator.jl

@@ -418,7 +418,7 @@ function mul_coefficients(A::SubOperator{T,KKO,Tuple{UnitRange{Int},UnitRange{In
     P = parent(A)
     kr,jr = parentindices(A)
     dt,rt = domaintensorizer(P),rangetensorizer(P)
-    KR,JR = Block(1):block(rt,kr[end]),Block(1):block(dt,jr[end])
+    KR,JR = Block(1):block(rt,last(kr)),Block(1):block(dt,last(jr))
     M = P[KR,JR]
     M*pad(b, size(M,2))
 end