$ git clone -n https://src.fedoraproject.org/rpms/rubygem-native-package-installer.git /var/lib/mock/f39-build-1499372-34744/root/chroot_tmpdir/scmroot/rubygem-native-package-installer
Cloning into '/var/lib/mock/f39-build-1499372-34744/root/chroot_tmpdir/scmroot/rubygem-native-package-installer'...
$ git fetch origin fd5112d716c72a555dbcc71be1a012d4231f0d62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-native-package-installer
 * [new ref]         fd5112d716c72a555dbcc71be1a012d4231f0d62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd5112d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild