git: 7392dc9d2683 - main - git-mfc: Let the upstream for PRERELEASE branches be main

The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=7392dc9d26830fe9d19e035d2e08f19dcca96591

commit 7392dc9d26830fe9d19e035d2e08f19dcca96591
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2026-07-24 21:09:48 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-07-24 21:09:48 +0000

    git-mfc: Let the upstream for PRERELEASE branches be main
    
    Such branches are in code slush but are the same as stable branches for
    the purpose of MFCs.
---
 tools/tools/git/git-mfc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tools/git/git-mfc b/tools/tools/git/git-mfc
index 45a16a3bd5e4..431ed2ebc861 100755
--- a/tools/tools/git/git-mfc
+++ b/tools/tools/git/git-mfc
@@ -59,7 +59,7 @@ def origin_branch():
         err(1, f"could not determine BRANCH from {newvers}")
     if branch == "CURRENT":
         err(1, "this is a CURRENT tree, we do not MFC to CURRENT")
-    if branch == "STABLE":
+    if branch == "STABLE" or branch == "PRERELEASE":
         return "main"
     if re.match(r'^RELEASE(-p\d+)?$', branch):
         if revision is None: