$ git clone -n https://src.fedoraproject.org/rpms/rust-unicode_categories.git /var/lib/mock/f39-build-1489266-34501/root/chroot_tmpdir/scmroot/rust-unicode_categories
Cloning into '/var/lib/mock/f39-build-1489266-34501/root/chroot_tmpdir/scmroot/rust-unicode_categories'...
$ git fetch origin 219a4304e4986397732ca6e7ac72d3ff8e786b72:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unicode_categories
 * [new ref]         219a4304e4986397732ca6e7ac72d3ff8e786b72 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 219a430 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild