$ git clone -n https://src.fedoraproject.org/rpms/kernel.git /var/lib/mock/f41-build-side-114669-60949422-6586666/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f41-build-side-114669-60949422-6586666/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin fa544757b8a894892156adece0fa45251749bdba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernel
 * [new ref]             fa544757b8a894892156adece0fa45251749bdba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa544757b kernel-6.15.5-100