Fix incorrect timestamp in region file header recalculation (#11318)

Author: NewwindServer

patches/server/1038-Attempt-to-recalculate-regionfile-header-if-it-is-co.patch

@@ -74,7 +74,7 @@ index a23dc2f8f4475de1ee35bf18a7a8a53233ccac12..226af44fd469053451a0403a95ffb446
          this.used.set(start, start + size);
      }
 diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
-index e761b63eebc1e76b2bb1cb887d83d0b63ad6ec90..eb0389ad86300665b6e057bcfa1d7c068dc6c6ab 100644
+index e761b63eebc1e76b2bb1cb887d83d0b63ad6ec90..1e0439cf3f4008fa430acb90b45f5bc4cdd6d7f2 100644
 --- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
 +++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
 @@ -51,6 +51,354 @@ public class RegionFile implements AutoCloseable {
@@ -411,7 +411,7 @@ index e761b63eebc1e76b2bb1cb887d83d0b63ad6ec90..eb0389ad86300665b6e057bcfa1d7c06
 +            // simply destroy the timestamp header, it's not used
 +
 +            for (int i = 0; i < 32 * 32; ++i) {
-+                this.timestamps.put(i, calculatedOffsets[i] != 0 ? (int)System.currentTimeMillis() : 0); // write a valid timestamp for valid chunks, I do not want to find out whatever dumb program actually checks this
++                this.timestamps.put(i, calculatedOffsets[i] != 0 ? RegionFile.getTimestamp() : 0); // write a valid timestamp for valid chunks, I do not want to find out whatever dumb program actually checks this
 +            }
 +
 +            // write new header