$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-locale-macros.git /var/lib/mock/f45-build-45876-828/root/chroot_tmpdir/scmroot/rust-unic-locale-macros
Cloning into '/var/lib/mock/f45-build-45876-828/root/chroot_tmpdir/scmroot/rust-unic-locale-macros'...
$ git fetch origin b9f566dfd835eeaa798a2e6db37196b4b5186896:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-locale-macros
 * [new ref]         b9f566dfd835eeaa798a2e6db37196b4b5186896 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9f566d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild