Mention that target tagged `manual` are *not* filtered out of negative target patterns (i.e. they will be subtracted).

This has been Blaze's behavior since 2010 but I can't find it documented anywhere.

PiperOrigin-RevId: 524291423
Change-Id: Ifeb63e184518e89933e8cc527c49ff79582b0590
diff --git a/site/en/run/build.md b/site/en/run/build.md
index 2112b19..2ecbb44 100644
--- a/site/en/run/build.md
+++ b/site/en/run/build.md
@@ -268,10 +268,11 @@
 
 Targets with `tags = ["manual"]` are not included in wildcard target patterns
 (`...`, `:*`, `:all`, etc.) when specified in commands like
-`bazel build` and `bazel test`; you should specify such
-test targets with explicit target patterns on the command line if you want Bazel
-to build/test them. In contrast, `bazel query` doesn't perform any
-such filtering automatically (that would defeat the purpose of
+`bazel build` and `bazel test` (but they are included in
+negative wildcard target patterns, that is they will be subtracted). You should
+specify such test targets with explicit target patterns on the command line if
+you want Bazel to build/test them. In contrast, `bazel query` doesn't perform
+any such filtering automatically (that would defeat the purpose of
 `bazel query`).
 
 ### Fetching external dependencies {:#fetching-external-dependencies}