$ git clone -n https://src.fedoraproject.org/rpms/rust-assert2-macros.git /var/lib/mock/f45-build-40212-769/root/chroot_tmpdir/scmroot/rust-assert2-macros
Cloning into '/var/lib/mock/f45-build-40212-769/root/chroot_tmpdir/scmroot/rust-assert2-macros'...
$ git fetch origin d977b57d293fa21f41d9b01bb2a96a09123aa7a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-assert2-macros
 * [new ref]         d977b57d293fa21f41d9b01bb2a96a09123aa7a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d977b57 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild