$ git clone -n https://src.fedoraproject.org/rpms/golang-github-facebookincubator-contest.git /var/lib/mock/f42-build-3364871-45045/root/chroot_tmpdir/scmroot/golang-github-facebookincubator-contest
Cloning into '/var/lib/mock/f42-build-3364871-45045/root/chroot_tmpdir/scmroot/golang-github-facebookincubator-contest'...
$ git fetch origin 2a91c21fcc9ac71e9e5c30a8a86978974bd56958:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-facebookincubator-contest
 * [new ref]         2a91c21fcc9ac71e9e5c30a8a86978974bd56958 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a91c21 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild