$ git clone -n https://src.fedoraproject.org/rpms/golang-github-grpc-ecosystem-prometheus.git /var/lib/mock/f39-build-1647644-40438/root/chroot_tmpdir/scmroot/golang-github-grpc-ecosystem-prometheus
Cloning into '/var/lib/mock/f39-build-1647644-40438/root/chroot_tmpdir/scmroot/golang-github-grpc-ecosystem-prometheus'...
$ git fetch origin 89f53c6be487e2c20002275202e3e621e97c2d8a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-grpc-ecosystem-prometheus
 * [new ref]         89f53c6be487e2c20002275202e3e621e97c2d8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89f53c6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild