Add host.user.* deprecation notice in field reuse description

CHANGELOG.next.md

@@ -27,6 +27,8 @@ Thanks, you're awesome :-) -->
 
 #### Deprecated
 
+* Note deprecation of the `host.user.*` field reuse. #1422
+
 ### Tooling and Artifact Changes
 
 #### Bugfixes

docs/field-details.asciidoc

@@ -3624,7 +3624,7 @@ example: `1325`
 
 | <<ecs-user,user>>
 | `host.user.*`
-| Fields to describe the user relevant to the event.
+| This reuse is deprecated and will be removed in the next major ECS version.
 
 // ===============================================================
 

experimental/generated/ecs/ecs_nested.yml

@@ -6137,7 +6137,7 @@ host:
     short: OS fields contain information about the operating system.
   - full: host.user
     schema_name: user
-    short: Fields to describe the user relevant to the event.
+    short: This reuse is deprecated and will be removed in the next major ECS version.
   short: Fields describing the relevant computing instance.
   title: Host
   type: group
@@ -15461,9 +15461,6 @@ user:
     - as: user
       at: destination
       full: destination.user
-    - as: user
-      at: host
-      full: host.user
     - as: user
       at: server
       full: server.user
@@ -15482,6 +15479,11 @@ user:
       at: user
       full: user.changes
       short_override: Captures changes made to a user.
+    - as: user
+      at: host
+      full: host.user
+      short_override: This reuse is deprecated and will be removed in the next major
+        ECS version.
     top_level: true
   reused_here:
   - full: user.group

generated/ecs/ecs_nested.yml

@@ -4782,7 +4782,7 @@ host:
     short: OS fields contain information about the operating system.
   - full: host.user
     schema_name: user
-    short: Fields to describe the user relevant to the event.
+    short: This reuse is deprecated and will be removed in the next major ECS version.
   short: Fields describing the relevant computing instance.
   title: Host
   type: group
@@ -10937,9 +10937,6 @@ user:
     - as: user
       at: destination
       full: destination.user
-    - as: user
-      at: host
-      full: host.user
     - as: user
       at: server
       full: server.user
@@ -10958,6 +10955,11 @@ user:
       at: user
       full: user.changes
       short_override: Captures changes made to a user.
+    - as: user
+      at: host
+      full: host.user
+      short_override: This reuse is deprecated and will be removed in the next major
+        ECS version.
     top_level: true
   reused_here:
   - full: user.group

schemas/user.yml

@@ -15,7 +15,6 @@
     expected:
       - client
       - destination
-      - host
       - server
       - source
       - at: user
@@ -27,6 +26,9 @@
       - at: user
         as: changes
         short_override: Captures changes made to a user.
+      - at: host
+        as: user
+        short_override: This reuse is deprecated and will be removed in the next major ECS version.
 
   type: group
   fields: