Prepare for updating server patches

patches/unapplied/server/Set-Zombie-last-tick-at-start-of-drowning-process.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Mon, 4 Mar 2019 02:23:28 -0500
+Subject: [PATCH] Set Zombie last tick at start of drowning process
+
+Fixes GH-1887
+
+diff --git a/src/main/java/net/minecraft/world/entity/monster/Zombie.java b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/monster/Zombie.java
++++ b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
+@@ -0,0 +0,0 @@ public class Zombie extends Monster {
+                     ++this.inWaterTime;
+                     if (this.inWaterTime >= 600) {
+                         this.startUnderWaterConversion(300);
++                        this.lastTick = MinecraftServer.currentTick; // Paper - Make sure this is set at start of process - GH-1887
+                     }
+                 } else {
+                     this.inWaterTime = -1;