To reproduce:
1. Open user project
2. Open the scene "CH_Level_1_Build"
3. Enter Play mode
4. Check "Batches" and "SetPass calls" in Game Stats.

Expected:
The Batches and SetPass calls count stays roughly the same in both versions.

Actual:
1) [not a bug, 5.3 actually was not counting SetPass in depth render] 5.4.2 compared to 5.3.6 has about 2x more SetPass calls (coming from depth texture rendering), similar amount of batches
2) [fixed] 5.5 compared to previous (5.3 or 5.4) has much more batches
3) [fixed] 5.5 when not in play mode, does not display "saved by dynamic batching" stat
4) [fixed] 5.5 when in play mode, doubles SetPass calls compared to outside of play mode
5) [fixed] 5.5 many static batch draw calls in frame debugger aren't shown as such (due to static batch draw call merging that was done)
6) [fixed] 5.6 frame debugger left side tree often does not update to reflect changes
7) [fixed] 5.6 frame debugger rendertarget display often displays wrong/stale data?

Reproduced on: 5.4.0f3, 5.5.0b5

Did not reproduce on: 5.3.4f1, 5.3.6p3