$ git clone -n https://src.fedoraproject.org/rpms/rust-powerfmt-macros.git /var/lib/mock/f45-build-43941-809/root/chroot_tmpdir/scmroot/rust-powerfmt-macros
Cloning into '/var/lib/mock/f45-build-43941-809/root/chroot_tmpdir/scmroot/rust-powerfmt-macros'...
$ git fetch origin ac3376b9224163f1788bbb5de551db3839f47761:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-powerfmt-macros
 * [new ref]         ac3376b9224163f1788bbb5de551db3839f47761 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac3376b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild