$ git clone -n https://src.fedoraproject.org/rpms/kernel.git /var/lib/mock/f42-build-side-115381-61117995-6589123/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f42-build-side-115381-61117995-6589123/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin 93f7bb7f2655be8c48a081fe27c73968809cf574:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernel
 * [new ref]             93f7bb7f2655be8c48a081fe27c73968809cf574 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93f7bb7f2 kernel-6.15.7-200