make 1.6-friendly

oscar-system · Feb 20, 2024 · c6d9624 · c6d9624
1 parent fe3a647
commit c6d9624
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/experimental/QuadFormAndIsom/src/enumeration.jl b/experimental/QuadFormAndIsom/src/enumeration.jl
@@ -505,7 +505,7 @@ function representatives_of_hermitian_type(G::ZZGenus, chi::Union{ZZPolyRingElem
 
   reps = ZZLatWithIsom[]
 
-  rank(G) == 0 && return ZZLatWithIsom[integer_lattice_with_isometry(integer_lattice(; gram=QQ[;]))]
+  rank(G) == 0 && return ZZLatWithIsom[integer_lattice_with_isometry(integer_lattice(; gram=matrix(QQ, 0, 0, QQFieldElem[])))]
 
   if degree(chi) == 1
     @hassert :ZZLatWithIsom 1 iszero(chi(1)*chi(-1))