$ git clone -n https://src.fedoraproject.org/rpms/golang-github-multiformats-multibase.git /var/lib/mock/f38-build-side-42-init-devel-675756-26685/root/chroot_tmpdir/scmroot/golang-github-multiformats-multibase
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-675756-26685/root/chroot_tmpdir/scmroot/golang-github-multiformats-multibase'...
$ git fetch origin 2b641fc7ec180912e3fa26522138bea25607746a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-multiformats-multibase
 * [new ref]         2b641fc7ec180912e3fa26522138bea25607746a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b641fc Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild