There's a script to automate fetching submodule changes. However, this script alays fetches remote master branch, which's not always the case. For example, for branch-5.0/next-5.0 pair the correct scylla-seastar branch would be the branch-5.0 one, not master. With this change updating a submodule from a custom branch would be like refresh-submodules.sh <submodule>:<branch> Signed-off-by: Pavel Emelyanov <xemul@scylladb.com> Message-Id: <20220322093623.15748-1-xemul@scylladb.com>