fix other event test

Author: ChrisRackauckas

lib/OrdinaryDiffEqCore/src/integrators/integrator_utils.jl

@@ -191,6 +191,7 @@ function _savevalues!(integrator, force_save, reduce_size)::Tuple{Bool, Bool}
     end
     if force_save || (integrator.opts.save_everystep &&
         (isempty(integrator.sol.t) ||
+         (integrator.t !== integrator.sol.t[end] || iszero(integrator.dt)) &&
          (integrator.opts.save_end || integrator.t !== integrator.sol.prob.tspan[2])
     ))
         integrator.saveiter += 1

test/interface/ode_tstops_tests.jl

@@ -36,7 +36,6 @@ end
     prob2 = remake(prob_ode_linear, tspan = (0.0, tdir * 1.0))
     integrator = init(prob2, Tsit5())
     tstops = tdir .* [0, 1 / 5, 1 / 4, 1 / 3, 1 / 2, 3 / 4, 1]
-    tstops[1] = 0.0
     for tstop in tstops
         add_tstop!(integrator, tstop)
     end