$ git clone -n https://src.fedoraproject.org/rpms/kf5-kbookmarks.git /var/lib/mock/f40-build-2292510-56142/root/chroot_tmpdir/scmroot/kf5-kbookmarks
Cloning into '/var/lib/mock/f40-build-2292510-56142/root/chroot_tmpdir/scmroot/kf5-kbookmarks'...
$ git fetch origin 924faf1fce81e616f1eebf7a7b4b06db308e3053:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kbookmarks
 * [new ref]         924faf1fce81e616f1eebf7a7b4b06db308e3053 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 924faf1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild