Fix Animation Playback Track not seeking properly

Reapply bugfix godotengine#38107

scene/animation/animation_mixer.cpp

@@ -1623,7 +1623,7 @@ void AnimationMixer::_blend_process(double p_delta, bool p_update_only) {
  double at_anim_pos = 0.0;
  switch (anim->get_loop_mode()) {
  case Animation::LOOP_NONE: {
- at_anim_pos = MAX((double)anim->get_length(), time - pos); //seek to end
+ at_anim_pos = MIN((double)anim->get_length(), time - pos); //seek to end
  } break;
  case Animation::LOOP_LINEAR: {
  at_anim_pos = Math::fposmod(time - pos, (double)anim->get_length()); //seek to loop
@@ -1658,6 +1658,7 @@ void AnimationMixer::_blend_process(double p_delta, bool p_update_only) {
  }
  } else {
  player2->play(anim_name);
+ player2->seek(0.0, true);
  t->playing = true;
  playing_caches.insert(t);
  }