$ git clone -n https://src.fedoraproject.org/rpms/rust-unicode-general-category.git /var/lib/mock/f40-build-2644282-66501/root/chroot_tmpdir/scmroot/rust-unicode-general-category
Cloning into '/var/lib/mock/f40-build-2644282-66501/root/chroot_tmpdir/scmroot/rust-unicode-general-category'...
$ git fetch origin f6f9e4b2a8a7544f34af00479f9f2c53c5d54389:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unicode-general-category
 * [new ref]         f6f9e4b2a8a7544f34af00479f9f2c53c5d54389 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6f9e4b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild