$ git clone -n https://src.fedoraproject.org/rpms/rust-igvm.git /var/lib/mock/f45-build-42512-794/root/chroot_tmpdir/scmroot/rust-igvm
Cloning into '/var/lib/mock/f45-build-42512-794/root/chroot_tmpdir/scmroot/rust-igvm'...
$ git fetch origin 8da78d49423e180da2756aaae3ac9e1863a1de7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-igvm
 * [new ref]         8da78d49423e180da2756aaae3ac9e1863a1de7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8da78d4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild