$ git clone -n https://src.fedoraproject.org/rpms/mailcommon.git /var/lib/mock/f41-build-854323-166847/root/chroot_tmpdir/scmroot/mailcommon
Cloning into '/var/lib/mock/f41-build-854323-166847/root/chroot_tmpdir/scmroot/mailcommon'...
$ git fetch origin 9e30e607c80be23ff45a9e09eccd5551de9cf8cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mailcommon
 * [new ref]         9e30e607c80be23ff45a9e09eccd5551de9cf8cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e30e60 24.08.0