$ git clone -n https://src.fedoraproject.org/rpms/libtree.git /var/lib/mock/f40-build-785824-134125/root/chroot_tmpdir/scmroot/libtree
Cloning into '/var/lib/mock/f40-build-785824-134125/root/chroot_tmpdir/scmroot/libtree'...
$ git fetch origin 900c9cc1670f0e703781dd9753b9e90a7bd1cd46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libtree
 * [new ref]         900c9cc1670f0e703781dd9753b9e90a7bd1cd46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 900c9cc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild