$ git clone -n https://src.fedoraproject.org/rpms/rubygem-webmock.git /var/lib/mock/f38-build-side-42-init-devel-911129-28695/root/chroot_tmpdir/scmroot/rubygem-webmock
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-911129-28695/root/chroot_tmpdir/scmroot/rubygem-webmock'...
$ git fetch origin 64468d839304bba5b740463841abe35a5c2580dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-webmock
 * [new ref]         64468d839304bba5b740463841abe35a5c2580dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64468d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild