$ git clone -n https://src.fedoraproject.org/rpms/dropbear.git /var/lib/mock/f40-build-2276919-55194/root/chroot_tmpdir/scmroot/dropbear
Cloning into '/var/lib/mock/f40-build-2276919-55194/root/chroot_tmpdir/scmroot/dropbear'...
$ git fetch origin 1b05bd1f65a4381f66958aaa8c5db6626b437b2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dropbear
 * [new ref]         1b05bd1f65a4381f66958aaa8c5db6626b437b2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b05bd1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild