$ git clone -n https://src.fedoraproject.org/rpms/libwnck3.git /var/lib/mock/f40-build-785531-133991/root/chroot_tmpdir/scmroot/libwnck3
Cloning into '/var/lib/mock/f40-build-785531-133991/root/chroot_tmpdir/scmroot/libwnck3'...
$ git fetch origin f5755355ad87783cdcf4b19b7aeb51e58c4bc3da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libwnck3
 * [new ref]         f5755355ad87783cdcf4b19b7aeb51e58c4bc3da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f575535 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild