fix undefined reference error when type widening

Author: mohamed82008

src/sample.jl

@@ -81,8 +81,8 @@ function mcmcsample(
         callback(rng, model, sampler, transition, 1)
 
         # Save the transition.
-        transitions = AbstractMCMC.transitions(transition, model, sampler, N; kwargs...)
-        transitions = save!!(transitions, transition, 1, model, sampler, N; kwargs...)
+        transitions = [transition]
+        Base.sizehint!(transitions, N)
 
         # Update the progress bar.
         progress && ProgressLogging.@logprogress 1/N
@@ -96,7 +96,9 @@ function mcmcsample(
             callback(rng, model, sampler, transition, i)
 
             # Save the transition.
-            transitions = save!!(transitions, transition, i, model, sampler, N; kwargs...)
+            oldT = typeof(transitions)
+            transitions = save!!(transitions, transition, i, model, sampler)
+            oldT !== typeof(transitions) && Base.sizehint!(transitions, N)
 
             # Update the progress bar.
             progress && ProgressLogging.@logprogress i/N