$ git clone -n https://src.fedoraproject.org/rpms/golang-github-shopspring-decimal.git /var/lib/mock/f45-build-12437-442/root/chroot_tmpdir/scmroot/golang-github-shopspring-decimal
Cloning into '/var/lib/mock/f45-build-12437-442/root/chroot_tmpdir/scmroot/golang-github-shopspring-decimal'...
$ git fetch origin 15f137d71bf8a7b533f99687fa1d9a40ab6249f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-shopspring-decimal
 * [new ref]         15f137d71bf8a7b533f99687fa1d9a40ab6249f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15f137d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild