t6050-replace: add test to clean up all the replace refs

diff --git a/Documentation/git-replace.txt b/Documentation/git-replace.txt
index 0142cd18ae7c1f78f345c9a511891a4d962a2677..d198006c56fff7301e9d5d1a3329044225bdd0f6 100644 (file)
--- a/Documentation/git-replace.txt
+++ b/Documentation/git-replace.txt
@@ -16,12 +16,17 @@ DESCRIPTION
 -----------
 Adds a 'replace' reference in `refs/replace/` namespace.
 
-The name of the 'replace' reference is the SHA1 of the object that is
-replaced. The content of the 'replace' reference is the SHA1 of the
+The name of the 'replace' reference is the SHA-1 of the object that is
+replaced. The content of the 'replace' reference is the SHA-1 of the
 replacement object.
 
+The replaced object and the replacement object must be of the same type.
+This restriction can be bypassed using `-f`.
+
 Unless `-f` is given, the 'replace' reference must not yet exist.
 
+There is no other restriction on the replaced and replacement objects.
+
 Replacement references will be used by default by all Git commands
 except those doing reachability traversal (prune, pack transfer and
 fsck).
@@ -69,9 +74,7 @@ go back to a replaced commit will move the branch to the replacement
 commit instead of the replaced commit.
 
 There may be other problems when using 'git rev-list' related to
-pending objects. And of course things may break if an object of one
-type is replaced by an object of another type (for example a blob
-replaced by a commit).
+pending objects.
 
 SEE ALSO
 --------