X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=git-debrebase.1.pod;h=b15bf00c1c88f233fa569f38a693e0cca4d5523d;hp=4d1a67360d6a4ba9a4700cd08caac5cb840a57dd;hb=0057ec1d2d864bbd40a5fcc32a5edeeb2bc90b4e;hpb=180a9c094c1b1e51281c70940dc451465ec04806

diff --git a/git-debrebase.1.pod b/git-debrebase.1.pod
index 4d1a6736..b15bf00c 100644
--- a/git-debrebase.1.pod
+++ b/git-debrebase.1.pod
@@ -250,6 +250,8 @@ the gbp upstream branch, if there is one.
 It is a snag if it is not an ancestor of HEAD,
 or if the history between the upstream and HEAD
 contains commits which make changes to upstream files.
+If it is not specified,
+the same algorithm is used as for git-debrebase new-upstream.
 
 It is also a snag if the specified upstream
 has a debian/ subdirectory.
@@ -257,9 +259,18 @@ This check exists to detect certain likely user errors,
 but if this situation is true and expected,
 forcing it is fine.
 
+git-debrebase will try to look for the dgit archive view
+of the most recent release,
+and if it finds it will make a pseduomerge so that
+your new git-debrebase view is appropriately fast forward.
+
 The result is a well-formed git-debrebase interchange branch.
 The result is also fast-forward from the gbp branch.
 
+It is a snag if the new branch looks like it will have diverged,
+just as for a laundering/unstitching call to git-debrebase;
+See L</Establish the current branch's ffq-prev>, below.
+
 Note that it is dangerous not to know whether you are
 dealing with a gbp patches-unappled branch containing quilt patches,
 or a git-debrebase interchange branch.