fix: Correct scale factor on last half step

There is a missing `; a = a(t)` in the argument to `outer_step!` that does the closing half step. This is never an issue if there is no background expansion. Add it in. This should maybe not be an optional argument; it shouldn't be possible to accidentally call with the wrong `a(t)`.
musoke · Mar 9, 2023 · ac6416b · ac6416b · musoke · Mar 9, 2023
1 parent cf1800e
commit ac6416b
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diff --git a/Project.toml b/Project.toml
@@ -1,7 +1,7 @@
 name = "UltraDark"
 uuid = "1c8d022d-dfc0-4b41-80ab-3fc7e88cdfea"
 authors = ["Nathan Musoke <[email protected]>"]
-version = "0.9.2"
+version = "0.9.3"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"

diff --git a/src/UltraDark.jl b/src/UltraDark.jl
@@ -165,7 +165,7 @@ function take_steps!(grids, t_start, Δt, n, output_config, a, constants, extern
         output_summary_row(grids, output_config, t, a(t), Δt, constants, external_states)
     end
 
-    outer_step!(Δt / 2, grids, constants)
+    outer_step!(Δt / 2, grids, constants; a = a(t))
     for s in external_states
         outer_step!(Δt / 2, grids, constants, s; a = a(t))
     end