$ git clone -n https://src.fedoraproject.org/rpms/rust-predicates2.git /var/lib/mock/f39-build-1542948-36526/root/chroot_tmpdir/scmroot/rust-predicates2
Cloning into '/var/lib/mock/f39-build-1542948-36526/root/chroot_tmpdir/scmroot/rust-predicates2'...
$ git fetch origin 0868a6dbf84e5ad42f14ba7f217e1a7595cd96ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-predicates2
 * [new ref]         0868a6dbf84e5ad42f14ba7f217e1a7595cd96ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0868a6d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild