$ git clone -n https://src.fedoraproject.org/rpms/plasma-desktop.git /var/lib/mock/f40-build-2425564-60598/root/chroot_tmpdir/scmroot/plasma-desktop
Cloning into '/var/lib/mock/f40-build-2425564-60598/root/chroot_tmpdir/scmroot/plasma-desktop'...
$ git fetch origin 30e0801d10a7f7be7fcb7d81a370aaf35831bc62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-desktop
 * [new ref]         30e0801d10a7f7be7fcb7d81a370aaf35831bc62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30e0801 Rebuild (qt6)